Stone · 35 pieces
Calcite
Calcite is a common but varied mineral that comes in almost every colour, from clear optical calcite to honey, orange and blue. It is soft and should be kept dry.
Caribbean Calcite Palmstone
Caribbean Calcite Palmstone
Enhydro Calcite Freeform
Gem Calcite Freeform
Zebra Calcite Bowl
Cobalto Calcite Sphere
Honey Calcite Cluster #8
Honey Calcite Cluster #5
Honey Calcite Cluster #11
Honey Calcite Cluster #12
Honey Calcite Cluster #3
Honey Calcite Cluster #4
Honey Calcite Cluster #1
Honey Calcite Cluster #9
Honey Calcite Cluster #10
Honey Calcite Cluster #7
Honey Calcite Cluster #2
Honey Calcite Cluster #6
Calcite on Quartz Druzy #11
Honey Calcite Cluster on Blue Quartz #13
Caribbean Calcite Palmstone
Iceland Spar Calcite Crystal Specimen
Calcite on Quartz Druzy #10
Calcite on Quartz Druzy #9
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Cobalto Calcite Shivalingam
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Cobalto Calcite Heart
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Cobalto Calcite Palmstone
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Calcite on Coral Specimen #3
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Calcite on Coral Specimen #1
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Calcite on Coral Specimen #5
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Calcite on Coral Specimen #2
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Calcite on Coral Specimen #4
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Calcite on Coral Specimen #8
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Calcite on Coral Specimen #6
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Calcite on Coral Specimen #7
Read about Calcite
Why optical calcite makes everything look doubledLook through clear calcite and letters underneath split in two. The physics of double refraction, a 1669 discovery, and a vinegar test for real calcite.How geodes form, from empty bubble to crystal liningWhy some geodes are hollow and crystal-lined while others are solid agate, why so many are amethyst, and how to spot a dyed or glued fake.How to tell real fluoriteFluorite gave the word 'fluorescence' to science. What makes it glow under UV, why it cleaves into octahedrons, and how to spot dyed glass sold as it.