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1
Description
Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate. The Mohs hardness is 3. Calcite can form by direct precipitation from waters rich in calcium. As concentrations increase or the amount of water decreases cry...
Reviews
5.0
2 ratings
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Great store and home decor options
E
Erin · January 10, 2026
My daughter loves coming here and adding to her collection of crystals. The staff is always so nice and helpful.