BRCbeads Matte Black Onyx Nature Onyx Gemstone with One-line Round Bead 12mm 15.5

BRCbeads Matte Black Onyx Nature Onyx Gemstone with One-line Round Bead 12mm 15.5

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SKU:
YTH331709
UPC:
758524175956
Condition:
New
Availability:
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Onyx is a variety of chalcedony that is similar to agate, with straight rather than curved bands. Nearly all black onyx on the market has been rendered a uniform, permanent black color with a treatment by sugar and acid or heat. This process has been used on onyx for thousands of years and does not decrease the value of the stone.
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