{"title":"Yellow \/ Golden","description":"\u003cp\u003eYellow and golden colored crystals, stones, mineral specimens and fossils perfect for your home!\u003c\/p\u003e","products":[{"product_id":"golden-calcite-septarian-concretion-slice-2","title":"Golden Calcite Septarian Concretion Slice","description":"\u003cp data-mce-fragment=\"1\" class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eA crystalline explosion of golden Calcite and brown Aragonite crystals in a limestone matrix. \u003c\/span\u003eThe more angular cracks and cavity separations are called \"septaria\". Some refer to this golden calcite formation as a \"septarian concretion\". What is the difference between a geode and a concretion? \u003ca href=\"https:\/\/www.unearthedstore.com\/blogs\/geology-unearthed\/what-is-a-geode\" target=\"_blank\"\u003eRead more here\u003c\/a\u003e! This specimen was collected and cut \/ sliced into a slab in southern Utah. The front of the piece has been cut and polished to a high gloss finish. The sides have been left in their natural state. \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eExtra bonus: When exposed to a UV flashlight, this piece fluoresces!\u003c\/span\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":43916014289126,"sku":"23DF231","price":115.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Golden_Calcite_Septarian_Concretion_Slab_23DF231.jpg?v=1696267441"},{"product_id":"large-pyritized-harpoceras-and-dactylioceras-fossil-slice","title":"Large Pyritized Fossil Plate with Harpoceras and Dactylioceras Ammonites","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eA phenomenal fossil display 180 million years in the making! This amazing fossil plate comes from the Holzmaden Shale in Germany. It features two prominent Harpoceras Ammonite fossils which have been naturally replaced by the mineral Pyrite. The bright brass coloration, detailed texture, and large size of the Ammonite fossils creates a stunning contrast against the dark shale rock matrix.\u003c\/p\u003e\n\u003cp\u003eAmmonites are an extinct group of sea creatures which thrived during the Jurassic Period approximately 180 million years ago. Besides the larger and more rare Harpoceras ammonite species, this plate also features the more common variety of ammonite found at this location, Dactylioceras. \u003cspan\u003e\u003cstrong\u003e\u003ca title=\"Crystal Care 101\" href=\"https:\/\/www.unearthedstore.com\/blogs\/guides\/crystal-care-101-how-to-take-care-of-and-clean-your-crystals\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":44408523784422,"sku":"23T405","price":450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Large_Fossil_Harpoceras_and_Dactylioceras_Plate_23T405i.jpg?v=1710613971"},{"product_id":"large-pyritized-fossil-plate-with-harpoceras-ammonite","title":"Large Pyritized Harpoceras Ammonite Fossil","description":"\u003cp\u003eThis stunning fossil plate comes from the Holzmaden Shale in Germany. It features a large and prominent Harpoceras Ammonite fossil which has been naturally replaced by the mineral Pyrite. The bright brass coloration, detailed texture, and large size of the Ammonite fossil creates a stunning contrast against the dark shale rock matrix.\u003c\/p\u003e\n\u003cp\u003eAmmonites are an extinct group of sea creatures which thrived during the Jurassic Period approximately 180 million years ago. Besides the larger and more rare Harpoceras ammonite species, this plate also features the more common variety of ammonite found at this location, Dactylioceras. Smaller fossil shell fragments can be seen throughout the beautiful shale matrix. \u003cspan\u003e\u003cstrong\u003e\u003ca title=\"Crystal Care 101\" href=\"https:\/\/www.unearthedstore.com\/blogs\/guides\/crystal-care-101-how-to-take-care-of-and-clean-your-crystals\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":44408551407846,"sku":"23T404","price":450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Large_Fossil_Harpoceras_and_Dactylioceras_Plate_23T404.jpg?v=1710619354"},{"product_id":"golden-calcite-and-aragonite-septarian-concretion","title":"Golden Calcite Septarian Concretion","description":"\u003cp class=\"p1\" data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eA pint-size punch of golden yellow Calcite crystals and dark brown Aragonite crystals in this fun concretion from Utah. \u003c\/span\u003eThe more angular cracks and cavity separations are called \"septaria\". Some refer to this Golden Calcite formation as a \"septarian concretion\". What is the difference between a geode and a concretion? \u003ca href=\"https:\/\/www.unearthedstore.com\/blogs\/geology-unearthed\/what-is-a-geode\" target=\"_blank\"\u003eRead more here\u003c\/a\u003e!\u003c\/p\u003e\n\u003cp class=\"p1\" data-mce-fragment=\"1\"\u003eThe front of the piece has been cut and polished to a high gloss finish. The sides and back have been left in their natural state. \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eExtra bonus: When exposed to a UV flashlight, this piece fluoresces (see photos for details)!\u003c\/span\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":45394268225766,"sku":"24DF13","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Golden_Calcite_Concretion_24DF13.jpg?v=1727903580"},{"product_id":"large-polished-colombian-copal-amber-specimen-with-insects","title":"Large Colombian Copal Amber with Insects","description":"\u003cp\u003eA truly captivating specimen of Copal Amber with incredibly detailed insects! This large specimen comes from the Hymeneae oblongnifolia tree of Colombia. The exceptional clarity and golden orange color of this piece allows you to easily view the myriad of insects trapped inside including spiders and winged insects. Golden yellow cloud-like inclusions of perhaps a trapped pollen or moisture can also be seen. It has been polished to a high gloss finish.\u003c\/p\u003e\n\u003cp\u003eCopal amber (or young amber) is a slightly different classification of tree resin than ancient amber. Ancient amber has \"crystallized\" or solidified to a harder extent than copal amber,  but it forms in the same way. Insects become trapped inside of resin which has been exuded from a tree either for defense purposes or as a healing mechanism following damage. This resin then begins to solidify and harden, encapsulating the insects inside.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe remains of the resin fall to the forest floor and if sufficiently polymerized will then wash into stream beds, or swamps where they are transported naturally to deposition sites. Some remain within the tissue of the tree and are later found preserved in coal deposits. \u003c\/p\u003e\n\u003cp\u003eThe age ranges of Copal from Colombia vary depending upon the region where it was collected and have been dated to between tens of thousands, up to 5 million years old. Colombian copal is considerably harder than copal amber specimens from other locations throughout the world, making it likely from the older part of that age range.\u003c\/p\u003e\n\u003cp\u003eThis specimen fluoresces under UV light. \u003cmeta charset=\"utf-8\"\u003eWe have backlit this specimen to provide more detailed photographs of the inclusions within the Amber.\u003cspan\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" href=\"https:\/\/www.unearthedstore.com\/blogs\/guides\/crystal-care-101-how-to-take-care-of-and-clean-your-crystals\" title=\"Crystal Care 101\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":45705291202790,"sku":"25T65","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Extra_Large_Copal_Amber_With_Insects_25T65b.jpg?v=1739825512"},{"product_id":"barite-crystal-slice-from-poland","title":"Barite Crystal Slice","description":"\u003cp\u003eA fun slice of Barite crystals from the Lubin Mining District in Poland. The cut and polished stone slice allows you to see a beautiful cross-section and observe the growth structure of this cream and tan colored Barite crystal cluster.\u003c\/p\u003e\n\u003cp\u003eCrystals from this locality are inter-grown stalactites \/ rosettes of bladed Barite and some have micro crystals of Pyrite on top. They also fluoresce under UV and phosphoresce creating a gorgeous green glow!\u003c\/p\u003e\n\u003cp\u003eThe Lubin Mining District is a famous mining area in Poland, known for extensive Copper and Silver deposits. Most of the minerals occur in veins along fault lines and sometimes within individual cavities that can range in size from a foot to large enough for you to walk through.\u003c\/p\u003e\n\u003cp\u003eThis specimen has been cut and polished into a slice with one side polished to a mirror finish. The surrounding edges have been left in their raw and natural state displaying the bladed nature of the individual Barite crystals.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eSpecimen Size (excluding base): Approx. 3.5\" H x 1.25\" W x .25\" Deep\u003cbr\u003e*Comes pre-mounted on clear acrylic display stand approx. 1.5\" x 1.5\"\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":45930159341798,"sku":"25T192","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Barite_Slice_25T192.jpg?v=1746558601"},{"product_id":"barite-crystal-slice-1","title":"Barite Crystal Slice","description":"\u003cp\u003eThis incredible coral-like cross-section of Barite crystals comes from the Lubin Mining District in Poland. The cut and polished stone slice allows you to observe the beautiful growth structure of this cream and tan colored Barite crystal cluster.\u003c\/p\u003e\n\u003cp\u003eCrystals from this locality are inter-grown stalactites \/ rosettes of bladed Barite and some have micro crystals of Pyrite on top. They also fluoresce under UV and phosphoresce creating a gorgeous green glow!\u003c\/p\u003e\n\u003cp\u003eThe Lubin Mining District is a famous mining area in Poland, known for extensive Copper and Silver deposits. Most of the minerals occur in veins along fault lines and sometimes within individual cavities that can range in size from a foot to large enough for you to walk through.\u003c\/p\u003e\n\u003cp\u003eThis specimen has been cut into a slice with one side polished to a high gloss finish. The surrounding edges have been left in their raw and natural state to observe the crystal structure of the Barite.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eSpecimen Size (excluding base): Approx. 2.75\" H x 2.75\" W x .25\" Deep\u003cbr\u003e*Comes pre-mounted on clear acrylic display stand approx. 2\" x 1.5\"\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":45930283303142,"sku":"25T194","price":98.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Barite_Crystal_Slice_25T194.jpg?v=1746564809"},{"product_id":"barite-crystal-cut-and-polished-poland","title":"Barite Crystal Cut and Polished","description":"\u003cp\u003eThis beautiful coral-like cluster of Barite crystals comes from the Lubin Mining District in Poland. The cut and polished side allows you to observe the beautiful growth structure of this cream and tan colored Barite crystal cluster. The reverse side features the raw and natural crystal blades of Barite, including a lovely coating of Pyrite crystals on top.\u003c\/p\u003e\n\u003cp\u003eCrystals from this locality are inter-grown stalactites \/ rosettes of bladed Barite. They also fluoresce under UV and phosphoresce creating a gorgeous green glow! The Lubin Mining District is a famous mining area in Poland, known for extensive Copper and Silver deposits. Most of the minerals occur in veins along fault lines and sometimes within individual cavities that can range in size from a foot to large enough for you to walk through.\u003c\/p\u003e\n\u003cp\u003eThis specimen has been cut and polished on one side, with the reverse side left in the raw and natural state. A perfect example of the Barite crystal formation on the exterior and a cross-section of the interior of the crystals.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eSpecimen Size (excluding base): Approx. 2\" H x 2.25\" W x 1.25\" Deep\u003cbr\u003e*Comes pre-mounted on clear acrylic display stand approx. 1.5\" x 1.5\"\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":45930290118886,"sku":"25T195","price":98.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Barite_Crystal_Cluster_25T195.jpg?v=1746565404"},{"product_id":"barite-on-fluorite-china","title":"Barite on Fluorite","description":"\u003cp\u003eA double-sided crystal dynamo, this stunning specimen of Barite and Fluorite comes from the Xiefang Mine, Jiangxi Province, China. Golden yellow Barite crystals present beautifully on one side of this specimen, with the reverse side a lovely mix of purple and green Fluorite crystals. The soft hue and color transition of the Fluorite pairs perfectly with the sunny yellow Barite crystals. \u003c\/p\u003e\n\u003cp class=\"p1\"\u003eSpecimen Approx. 2\" W x 1.75\" H x 1\" Deep\u003cbr\u003eNote: Specimen comes pre-mounted on a 1.5\" x 1.5\" clear acrylic display stand.\u003cstrong\u003e\u003ca title=\"Crystal Care 101\" href=\"https:\/\/www.unearthedstore.com\/blogs\/guides\/crystal-care-101-how-to-take-care-of-and-clean-your-crystals\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":46038840148198,"sku":"24T56","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Barite_with_Fluorite_24T56c.jpg?v=1750191595"},{"product_id":"barite-on-fluorite","title":"Barite on Fluorite","description":"\u003cp\u003eA lovely double-sided crystal specimen of Barite and Fluorite from the Xiefang Mine, Jiangxi Province, China. Golden yellow Barite crystals present beautifully on one side of this specimen, with the reverse side a mix of purple and green Fluorite crystals. The soft hue and color transition of the Fluorite pairs perfectly with the sunny yellow Barite crystals. \u003c\/p\u003e\n\u003cp class=\"p1\"\u003eSpecimen Approx. 2.9\" H x 1.5\" W x 1\" Deep\u003cbr\u003eNote: Specimen comes pre-mounted on a 1.5\" x 1.5\" clear acrylic display stand.\u003cstrong\u003e\u003ca href=\"https:\/\/www.unearthedstore.com\/blogs\/guides\/crystal-care-101-how-to-take-care-of-and-clean-your-crystals\" title=\"Crystal Care 101\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":46038860103910,"sku":"24T57","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Barite_on_Blue_Fluorite_24T57c.jpg?v=1750198299"},{"product_id":"large-star-muscovite-mica-mineral-specimen-from-brazil","title":"Extra Large Star Muscovite Mica","description":"\u003cp\u003eIf you are looking for a gold star crystal specimen, this is it, literally! An extra large and nearly flawless example of the unusual star-shaped crystal formation of golden Muscovite mica crystals.\u003c\/p\u003e\n\u003cp\u003eRepeated crystal twinning creates the amazing star-like shapes throughout this mineral specimen. The golden muscovite crystals look like shining stars, criss-crossing in different directions throughout this gorgeous piece from Brazil.\u003c\/p\u003e\n\u003cp\u003eThis incredible mineral specimen displays beautifully from multiple angles, as it has crystals front and back.\u003cstrong\u003e\u003ca title=\"Crystal Care 101\" href=\"https:\/\/www.unearthedstore.com\/blogs\/guides\/crystal-care-101-how-to-take-care-of-and-clean-your-crystals\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":46566868222182,"sku":"25T289","price":395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Extra_Large_Star_Muscovite_25T289d.jpg?v=1755989218"},{"product_id":"large-pyritized-ammonite-pair-morocco","title":"Large Pyritized Ammonite Pair","description":"\u003cp\u003eThis bold and brass colored Ammonite fossil pair from Morocco has been naturally replaced by the mineral Pyrite! The golden coloration of the Pyrite and darker tones of the exterior shale matrix contrast perfectly with white Calcite present in some of the Ammonite growth chambers.\u003c\/p\u003e\n\u003cp\u003eAmmonites are an extinct group of sea creatures which thrived during the Jurassic Period approximately 180 million years ago. This large Ammonite shell has been cut in half and lightly polished to display the excellent detail and mineralization inside.\u003c\/p\u003e\n\u003cp\u003eEach side approx. 4.6\" x 3.5\" x .5\"\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\" data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.unearthedstore.com\/blogs\/guides\/crystal-care-101-how-to-take-care-of-and-clean-your-crystals\" title=\"Crystal Care 101\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":46578358354150,"sku":"25T84","price":175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Pyritized_Ammonite_Pair_25T84e.jpg?v=1756327464"},{"product_id":"large-calcite-crystal-cluster-from-mexico","title":"Large Calcite Crystals on Matrix","description":"\u003cp class=\"p2\"\u003eA large and lovely lemon meringue mineral specimen of Calcite and Drusy Quartz from Chihuahua, Mexico. This stunning piece features large Calcite crystals with a soft yellow and gold color on a bed of sparkly Drusy Quartz. The Calcite crystals are also lightly dusted with a secondary crystal layer of Drusy Quartz creating extra sparkle.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eWhen viewed under ultraviolet (UV) light, the Calcite crystals phosphoresce.\u003cstrong\u003e\u003ca href=\"https:\/\/www.unearthedstore.com\/blogs\/guides\/crystal-care-101-how-to-take-care-of-and-clean-your-crystals\" title=\"Crystal Care 101\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":46708334133478,"sku":"25T243","price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Large_Calcite_Plate_25T243e.jpg?v=1759514547"},{"product_id":"large-golden-calcite-septarian-concretion","title":"Large Golden Calcite Septarian Concretion","description":"\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eA gorgeous golden yellow Calcite concretion from Utah. This large and lovely specimen features sharply terminated Calcite crystals and dark brown Aragonite crystals. Besides its unique free-form shape, this specimen contains a special surprise... a large golden Barite crystal can be seen at the base of the Calcite crystal cavity!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe more angular cracks and cavity separations of the stone are called \"septaria\". \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThis beautiful specimen formed from the concentration of golden calcite and brown aragonite in a gray limestone matrix. \u003c\/span\u003eSome refer to this Golden Calcite formation as a \"Septarian Concretion\". What is the difference between a geode and a concretion? \u003ca href=\"https:\/\/www.unearthedstore.com\/blogs\/geology-unearthed\/what-is-a-geode\" target=\"_blank\"\u003eRead more here\u003c\/a\u003e!\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe front and sides of the piece have been polished to a high gloss finish. The central crystal cavity and back have been left in their natural state. Besides the lovely nature of this specimen under regular light,\u003cspan\u003e when exposed to a UV flashlight, this piece fluoresces (see photos for details). And bonus, the large Barite crystal present at the base also phosphoresces!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan\u003eThis specimen has a flat cut base allowing it to display beautifully without a stand.\u003c\/span\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":46715171930342,"sku":"25DF174","price":650.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Golden_Calcite_Septarian_Concretion_25DF174c.jpg?v=1759778923"},{"product_id":"septarian-concretion-slice-with-yellow-calcite","title":"Golden Calcite Septarian Concretion Slice","description":"\u003cp data-mce-fragment=\"1\" class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eA fun golden yellow slice of Calcite and Aragonite crystals in a limestone matrix. \u003c\/span\u003eThe more angular cracks and cavity separations are called \"septaria\". Some refer to this golden calcite formation as a \"septarian concretion\".\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" class=\"p1\"\u003eWhat is the difference between a geode and a concretion? \u003ca href=\"https:\/\/www.unearthedstore.com\/blogs\/geology-unearthed\/what-is-a-geode\" target=\"_blank\"\u003eRead more here\u003c\/a\u003e! This specimen was collected and cut \/ sliced into a slab in southern Utah. The front of the piece has been cut and polished to a high gloss finish. The sides have been left in their natural state. \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eExtra bonus: When exposed to a UV flashlight, this piece fluoresces!\u003c\/span\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":46715252244710,"sku":"25DF182","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Golden_Calcite_Septarian_Concretion_25DF182b.jpg?v=1759782590"},{"product_id":"golden-calcite-septarian-concretion-slice-utah","title":"Golden Calcite Septarian Concretion Slice","description":"\u003cp class=\"p1\" data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eA glowing golden yellow slice of Calcite and Aragonite crystals in a limestone matrix. \u003c\/span\u003eThe more angular cracks and cavity separations are called \"septaria\". Some refer to this golden calcite formation as a \"septarian concretion\".\u003c\/p\u003e\n\u003cp class=\"p1\" data-mce-fragment=\"1\"\u003eWhat is the difference between a geode and a concretion? \u003ca href=\"https:\/\/www.unearthedstore.com\/blogs\/geology-unearthed\/what-is-a-geode\" target=\"_blank\"\u003eRead more here\u003c\/a\u003e! This specimen was collected and cut \/ sliced into a slab in southern Utah. The front of the piece has been cut and polished to a high gloss finish. The sides have been left in their natural state. \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eExtra bonus: When exposed to a UV flashlight, this piece fluoresces!\u003c\/span\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":46715275903206,"sku":"25DF181","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Golden_Calcite_Septarian_Concretion_25DF181f.jpg?v=1759784188"},{"product_id":"pyritized-ammonite-shell-fossil-with-pyrite-crystals","title":"Pyritized Ammonite","description":"\u003cp\u003eA lovely and lustrous Ammonite fossil from the Ryazan region of western Russia. This \u003cmeta charset=\"utf-8\"\u003eJurassic Period ammonite fossil has been replaced by the mineral Pyrite. Druzy crystals of Pyrite can even be seen inside the hollow growth chambers of the ammonite shell!\u003c\/p\u003e\n\u003cp\u003eAmmonites are an extinct variety of sea creatures that swam the shallow seas millions of years ago. As the shell fossilizes, it is naturally replaced by the mineral pyrite, creating shiny and golden colorations. Part of the shell naturally dissolved away, exposing the amazing pyritized growth chambers inside!\u003c\/p\u003e\n\u003cp\u003eThe top of this specimen has been lightly polished.\u003cspan\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.unearthedstore.com\/blogs\/guides\/crystal-care-101-how-to-take-care-of-and-clean-your-crystals\" title=\"Crystal Care 101\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":46854531416294,"sku":"25T40","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Pyritized-Ammontie-Fossil-25T40b_c78de01e-6d5e-4631-8b88-da8f4be9ec16.jpg?v=1771804711"},{"product_id":"large-marra-mamba-tiger-eye-tiger-iron-slab","title":"Large Marra Mamba Tiger Iron Slab","description":"\u003cp class=\"p1\"\u003eAn unbeliveable geologic treasure over a BILLION years in the making. The amazing Marra Mamba Formation of Western Australia is an iron-rich sedimentary unit dated at approximately 2.5 billion years old! \u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis variety of Tiger Eye \/ Tiger Iron consist of the earliest known fossilized organisms and the oldest known rocks on Earth! The alternating layers consist of iron oxide (metallics and reds) and microcrystalline silica in the form of Tiger Eye (golds), forming a stone called Tiger Iron, a Tiger Eye rich Banded Iron Formation. \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFormed during the Archean Eon, (Archean from the greek meaning “beginning” or “origin” for the first start of life), it is believed that the Earth resembled a water world, with most of the continental crust hiding under a very deep ocean. The atmosphere lacked free oxygen, so when the first micro-organisms (cyanobacteria) photosynthesized, it greatly increased the oxygen content in the oceans.\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e Banded Tiger Iron slabs are believed to be derived in part from the remains of these micro-organisms. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan\u003eAs dissolved iron and silicon rose from depths in the ocean, it interacted with the more oxygen-rich water (produced from the cyanobacteria photosynthesizing) to combine and make insoluble iron oxides and silica, which came out of solution as a fine-grained sediment. As these sediments fell to the sea floor, it created accumulating layers of iron oxide and silica-rich sediments in alternating bands on the ocean floor. This process repeated for nearly a billion years and can be seen in all its geologic glory in slabs like this!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan\u003eA large slice of this rock formation has been cut with one side polished to a high gloss finish.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":47336363917542,"sku":"26T52","price":695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Tiger_Iron_Tiger_Eye_Slice_26T52.jpg?v=1770657552"},{"product_id":"petrified-blue-forest-wood-slice-wyoming","title":"Petrified Wood Slice from Blue Forest, Wyoming","description":"\u003cp\u003eGolden yellows and soft gray-blues grace this lovely petrified wood slice from the famous Blue Forest in Eden Valley, Sweetwater County, Wyoming. This petrified wood has been dated to the Eocen Epoch, approximately 50 million years ago.\u003c\/p\u003e\n\u003cp\u003eThe dark colors of the petrified wood contrast beautifully with the mineral replacement in the form of blue, gray and white Chalcedony. If that weren't enough, bright golden yellow Calcite has also joined the geologic party! This piece even fluoresces under exposure to a UV flashlight!\u003c\/p\u003e\n\u003cp\u003eThe front has been polished to a high gloss finish, with the sides left in the raw and natural condition. A thin layer of fiberglass was applied to the back of the slice to ensure the stones structure and stability.\u003c\/p\u003e\n\u003cp\u003ePetrified wood forms when a tree falls and is rapidly buried by sediment such as volcanic ash or river sediments. In this case, the tree fell into a swamp or bog, and was rapidly buried by algae. The algae formed a kind of cast around the tree, creating a reduced oxygen environment (anaerobic) which halts the usual decay process.\u003c\/p\u003e\n\u003cp\u003eMinerals carried through the flow of water and absorbed into the tree and the surrounding algal cast slowly began to replace the organic material and crystallize. Over hundreds and thousands of years this crystallization took place hardening into stone.\u003cspan\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.unearthedstore.com\/blogs\/guides\/crystal-care-101-how-to-take-care-of-and-clean-your-crystals\" title=\"Crystal Care 101\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":47350637723878,"sku":"26T34","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Petrified_Wood_Blue_Forest_Wood_26T34.jpg?v=1770921732"},{"product_id":"pyritized-ammonite-fossil-shell-from-russia","title":"Pyritized Ammonite","description":"\u003cp\u003eA lustrous Ammonite fossil packed with Pyrite! This Jurassic Period ammonite fossil comes from the Ryazan region of western Russia. The ammonite fossil has been replaced by the mineral Pyrite, with druzy crystals of Pyrite visible inside the hollow growth chambers of the ammonite shell!\u003c\/p\u003e\n\u003cp\u003eAmmonites are an extinct variety of sea creatures that swam the shallow seas millions of years ago. As the shell fossilizes, it is naturally replaced by the mineral pyrite, creating shiny and golden colorations. Part of the shell naturally dissolved away, exposing the amazing pyritized growth chambers inside!\u003c\/p\u003e\n\u003cp\u003eThe top of this specimen has been lightly polished. \u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":47376912941286,"sku":"25T39","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Pyritized-Ammonite-Fossil-25T39.jpg?v=1771805980"},{"product_id":"fossil-pyritized-ammonite-shell","title":"Pyritized Ammonite","description":"\u003cp\u003eYou'll find extra shine in this Ammonite fossil which is packed with Pyrite! This Jurassic Period ammonite fossil comes from the Ryazan region of western Russia. The ammonite fossil has been replaced by the mineral Pyrite, with druzy crystals of Pyrite visible inside the hollow growth chambers of the ammonite shell!\u003c\/p\u003e\n\u003cp\u003eAmmonites are an extinct variety of sea creatures that swam the shallow seas millions of years ago. As the shell fossilizes, it is naturally replaced by the mineral pyrite, creating shiny and golden colorations. Part of the shell naturally dissolved away, exposing the amazing pyritized growth chambers inside!\u003c\/p\u003e\n\u003cp\u003eThe top of this specimen has been lightly polished. \u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":47376998596838,"sku":"25T38","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Pyritized-Ammonite-Fossil-25T38.jpg?v=1771807477"},{"product_id":"pyritized-ammonite-shell-with-pyrite-crystals-inside","title":"Pyritized Ammonite","description":"\u003cp\u003eGlittering chambers of Pyrite crystals can be found inside this lovely Ammonite fossil from the Ryazan region of western Russia. This Jurassic age ammonite fossil has been replaced by the mineral Pyrite, with druzy crystals of Pyrite visible inside the hollow growth chambers of the ammonite shell!\u003c\/p\u003e\n\u003cp\u003eAmmonites are an extinct variety of sea creatures that swam the shallow seas millions of years ago. As the shell fossilizes, it is naturally replaced by the mineral pyrite, creating shiny and golden colorations. Part of the shell naturally dissolved away, exposing the amazing pyritized growth chambers inside!\u003c\/p\u003e\n\u003cp\u003eThe top of this specimen has been lightly polished. \u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":47377020879078,"sku":"25T37","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Pyritized-Ammonite-Fossil-25T37.jpg?v=1771808720"},{"product_id":"pyrite-cube-in-matrix-navajun-spain","title":"Pyrite Cube in Matrix","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eA geometric wonder this Pyrite cube in matrix comes from Navajun, Spain. This Pyrite specimen is completely natural, it has not been cut or polished. The incredible cubic shape comes as a result of the Pyrite's chemistry and isometric crystal structure.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eOn an atomic level, the structure forms as a cube and continues to exhibit this shape as it grows. The limestone (marl) formation that these cubes form in perfectly preserves the crystals. Often times the softer surrounding host rock is gently chipped away to reveal the full cubic shape. \u003cbr\u003e\u003cbr\u003eA miniature Pyrite crystal even started to form on one side of the crystal faces!\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003eNeed a display stand?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eIf you would like a stand to display this specimen upright with a slight tilt forward, we recommend \u003c\/span\u003eadding \u003ca rel=\"noopener\" href=\"https:\/\/www.unearthedstore.com\/products\/clear-acrylic-mineral-display-stand-a1\" target=\"_blank\"\u003eStand A1\u003c\/a\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e to your cart.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cstrong\u003eCrystal\u003cspan\u003e \u003c\/span\u003eCare\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWant to know more about caring for your beautiful crystals and stones? Learn more \u003c\/span\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.unearthedstore.com\/blogs\/guides\/crystal-care-101-how-to-take-care-of-and-clean-your-crystals\" title=\"Crystal Care 101\" target=\"_blank\"\u003ehere\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":47423425151206,"sku":"22DS12","price":68.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Cubic_Pyrite_in_Matrix_22DS12g.jpg?v=1772732114"},{"product_id":"pyrite-cubes-in-matrix-navajun-spain","title":"Pyrite Cubes in Matrix","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eA geometric wonder these Pyrite cubes in matrix come from Navajun, Spain. This Pyrite specimen features two Pyrite crystal cubes (one larger, one smaller). It is completely natural, it has not been cut or polished. The incredible cubic shape comes as a result of the Pyrite's chemistry and isometric crystal structure.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eOn an atomic level, the structure forms as a cube and continues to exhibit this shape as it grows. The limestone (marl) formation that these cubes form in perfectly preserves the crystals. Often times the softer surrounding host rock is gently chipped away to reveal the full cubic shape. \u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":47423437471974,"sku":"22DS12z","price":68.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Cubic_Pyrite_in_Matrix_22DS12zc.jpg?v=1772733617"},{"product_id":"labradorite-polished-specimen-madagascar","title":"Labradorite","description":"\u003cp\u003eTeals, blues, golds and pinks flash across this lovely Labradorite specimen from Madagascar. This stone is a variety of Plagioclase Feldspar that has an incredible natural iridescence often referred to as \"schiller\" or Labradorescence. \u003cspan\u003eThis effect causes the stone to \"flash\" different colors when light is reflected at a certain angle. As you can see demonstrated in the photographs, when tilted at varying angles the stone displays a beautiful rainbow color flash of Labradorescence.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eThe entire specimen front and back has been polished to a high gloss finish. \u003c\/span\u003e\u003cspan\u003eThe specimen has a flat-cut base which allows it to stand freely on its own.\u003c\/span\u003e\u003cstrong\u003e\u003ca title=\"Crystal Care 101\" href=\"https:\/\/www.unearthedstore.com\/blogs\/guides\/crystal-care-101-how-to-take-care-of-and-clean-your-crystals\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":47707423408358,"sku":"26T133","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Large_Labradorite_26T133e.jpg?v=1779567546"},{"product_id":"labradorite-polished-stone-specimen-madagascar","title":"Labradorite","description":"\u003cp\u003eGold yellows, oranges, blues and teals flash across this lovely Labradorite specimen from Madagascar. This stone is a variety of Plagioclase Feldspar that has an incredible natural iridescence often referred to as \"schiller\" or Labradorescence. \u003cspan\u003eThis effect causes the stone to \"flash\" different colors when light is reflected at a certain angle. As you can see demonstrated in the photographs, when tilted at varying angles the stone displays a beautiful rainbow color flash of Labradorescence.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eThe entire specimen front and back has been polished to a high gloss finish. \u003c\/span\u003e\u003cspan\u003eThe specimen has a flat-cut base which allows it to stand freely on its own.\u003c\/span\u003e\u003cstrong\u003e\u003ca title=\"Crystal Care 101\" href=\"https:\/\/www.unearthedstore.com\/blogs\/guides\/crystal-care-101-how-to-take-care-of-and-clean-your-crystals\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":47714972270822,"sku":"26T132","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Labradorite-26T132.jpg?v=1779740457"},{"product_id":"labradorite-cut-and-polished-specimen-madagascar","title":"Labradorite","description":"\u003cp\u003eLovely blues, golds and teals dance across this Labradorite specimen from Madagascar. This stone is a variety of Plagioclase Feldspar that has an incredible natural iridescence often referred to as \"schiller\" or Labradorescence. \u003cspan\u003eThis effect causes the stone to \"flash\" different colors when light is reflected at a certain angle. As you can see demonstrated in the photographs, when tilted at varying angles the stone displays a beautiful rainbow color flash of Labradorescence.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eThe entire specimen front and back has been polished to a high gloss finish. \u003c\/span\u003e\u003cspan\u003eThe specimen has a flat-cut base which allows it to stand freely on its own.\u003c\/span\u003e\u003cstrong\u003e\u003ca title=\"Crystal Care 101\" href=\"https:\/\/www.unearthedstore.com\/blogs\/guides\/crystal-care-101-how-to-take-care-of-and-clean-your-crystals\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Unearthed Store","offers":[{"title":"Default Title","offer_id":47714976497894,"sku":"26T131","price":78.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2264\/7069\/files\/Labradorite-26T131c.jpg?v=1779741092"}],"url":"https:\/\/www.unearthedstore.com\/collections\/yellow-and-golden-colored-rocks-and-fossils-for-sale.oembed?page=2","provider":"Unearthed Store","version":"1.0","type":"link"}