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12mm Coin Matte Onyx Gemstone Beads
12mm Coin matte onyx. Matte Onyx is achieved by sandblasting onyx to give it a matte finish. These beads have been treated to give them a permanent black color. Artificial treatments have been used since ancient times to produce both the black color in "black onyx" and the reds and yellows in sardonyx. Onyx is said to enhance steadfastness and determination, setting one's mind to a task. Origin: U.S.A. Approximately 17 beads per 8" strand. Sold 1 strand per pack.