Smoky Quartz
Ranges from pale tea-coloured quartz to nearly black morion. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Editorial guides
Colour: <span>Black</span>
Mineralogy, identification, care, lapidary craft, interiors and documented cultural history—with traditional beliefs clearly labelled as a separate subject.
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 →Hematite
A red-brown streak is a classic identification clue even when the specimen itself looks metallic grey. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional…
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