The contemporary shape of these onyx 12mm square beads from Dakota Stones is only complemented by the dark color of the natural material. Available in 8-inch strands, these slightly puffed square-shaped beads feature a glossy black color that would make any colors pop. 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. Mined in Brazil, India and Madagascar, onyx is said to help ground and focus your attention. Dakota Stones offers high-quality gemstones that are all useable in jewelry designs because every bead is checked to ensure they are cut and drilled correctly, that the finish is right and that the beads look distinct to their stone type.
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