Signature Statements: Unique Silver Black Onyx Jewelry for Distinctive Looks from Ashley Lopez's blog
Black onyx is a type of onyx gemstone that is a member of the chalcedony family of silicate stones. It is identified by its harsh texture and vertical lines, and it is made up of alternating-colored groups of fine-grained quartz. Its appearance is like a large, opaque jet-black gemstone with a dull shine and waxy feel. Even though pure black onyx does occur naturally, that's why it is rare.
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