When you're looking for a fun and inexpensive mineral to display these aragonite crystal clusters are for you! While aragonite has an orthorhombic crystal structure, repeated crystal twinning (as shown here) makes the crystals appear almost hexagonal. Crystal after crystal has grown on top of one another to form these cute aragonite globes from Morocco.
Approx. 4"H x 2" W x 2.5"L
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This striking geometric form is a solid cube of pyrite. Mined in Navajun, Spain, pyrite...