Naturally onyx has a fine texture that’s hardened and solidified after refinement. Although the gemstone is usually black, some forms of onyx may display brown and white ribbons against a dark brown or black background. These variations are known as ‘sardonyx’.
Historically onyx has been known to possess various healing properties. The gemstone has been commonly incorporated in ancient jewellery for treating glaucoma, anxiety, and ulcers, while increasing vigor and stamina.
Origins
Brazil, Uruguay, India, California
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