Onyx
A useful example of why trade names and mineral identity are not always the same thing. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional…
Read guide →Mineralogy, identification, care, lapidary craft, interiors and documented cultural history—with traditional beliefs clearly labelled as a separate subject.
A useful example of why trade names and mineral identity are not always the same thing. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional…
Read guide →The cat’s-eye band is the defining visual feature and is strongest on well-oriented polished surfaces. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
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