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Guaranteed Natural Gemstones |
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Price in USD: |
$8.76 |
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4.38ct Onyx
Onyx is the black form of chalcedony, a cryptocrystalline form of quartz. Onyx naturally occurs in bands of black and white, and is typically dyed to produce the familiar jet black cabochons.
For more information see our Chalcedony Info Page
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