Angelite
Its soft powder-blue colour and matte appearance are more subdued than most blue gemstones. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Editorial guides
Mineral Family: <span>Sulfate</span>
Mineralogy, identification, care, lapidary craft, interiors and documented cultural history—with traditional beliefs clearly labelled as a separate subject.
Selenite / Gypsum
Its silky glow is attractive, but it scratches easily enough to mark with a fingernail. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Celestite
Often appears as delicate sky-blue crystals lining pale matrix or geode cavities. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Barite
Its heft is one of the easiest physical characteristics for beginners to notice. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
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