calcite
yellow calcite & carved agate choker
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| composition | calcium carbonate |
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| name source | from Greek chalix, meaning "lime" |
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| other accepted names | limespar, calcspar, Mexican onyx (a variety of calcite) |
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| color | wide range of colors |
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| color source | various impurities |
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| significant sources | around the world |
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| MOH scale | 3 |
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| care and treatment | With a hardness rating of just 3, calcite is very soft and can be easily scratched � or shattered with the right amount of force. Clean with warm soapy water and a soft brush. Be to store away from other jewelry with sharp edges. |
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