Glinting shine bounces off the dark surface of the onyx 12mm faceted round beads from Dakota Stones. Available by the strand, these beads feature a large spherical shape and facets cut into the surface for added dimension and shine. 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 set one's mind to a task. Showcase these beads in a bold necklace design along with vibrant contrasting colors.
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