Black Onyx is an opaque dyed variety of cryptocrystalline quartz called Chalcedony. Dyed Black Onyx is frequently used in gold and silver jewelry when a solid black ornamental gemstone is needed. Dyed Black Onyx has a hardness of 6.5 7 and is durable.
Item #RKKN-16: ESTATE PIECE - 14Kt. Yellow Gold slide pendant with 10x12mm cushion Black Onyx cab.
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Item #SC-EPFC-0801-X1: Rhodium-plated Sterling Silver Earrings with two 4mm square Golden Citrine of .65 cts. TW & Black Onyx; Post backs.
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Item #IC-P004BOF: Handcrafted Indiri Collection Sterling Silver Bali beaded pendant with checkerboard faceted 8x12mm oval Black Onyx.
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Item #ELY-CP-BO-42: Hammered Sterling Silver earrings with 6mm round Cultured Pearls, 7x25mm oval Black Onyx cabs and post backs.
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Item #MN-SSER-WP-7: Sterling Silver earrings with white Fresh Water cultured pearls, plum Aventurine beads, Black Onyx beads and shepherd's hooks.
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