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You Selected (8): Calcite Clear All
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Calcite

Calcite is a carbonate mineral and is the most stable form of calcium carbonate. With a hardness of only 3 on the Mohs scale, it can only be used in jewelry that won't be subject to knocks or scratches, such as earrings and pendants. Its hardness is similar to that of gems like amber, coral and chrysocolla. Though calcite is not an especially durable material, it does take an excellent polish. Many historical artifacts identified as alabaster are in fact made from calcite.

Pure calcium carbonate is colorless, but calcite is often colored by various impurities, including iron, magnesium, manganese, zinc or cobalt. Thus you will find calcite in a range of colors including white, gray, yellow, green, red and blue.

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Satisfied with gem & purchase process! Thanks!
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Easy to see the gemstones you are buying, easy to see prices and shipping.
Posted By Amy in October, 2018
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I have been using GemSelect for at lest five years and I have no complaints!
Posted By in October, 2018
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This site always has beautiful stones to choose from and you will get the actual gem that is pictured. The shipping is fast and reasonably priced.
Posted By CAC in October, 2018
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I have not gotten my gems, but when i do i will be very happy, yet i did not like you had to pay $15 extra for faster shipping
Posted By Jack in October, 2018
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I love GemSelect, personally. I browse their site almost daily to see all the new stones available. Their selection is pretty amazing. The quality isn't always the highest and the cut of the stones isn't always perfect. But for the price, and if you look hard enough, you can find a real gem, so to speak.
Posted By Patrick in September, 2018
Source: Bizrate
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

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