Apatite
Bright neon blue-green material is visually striking but relatively soft for a gemstone. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Editorial guides
Colour: <span>Blue</span>
Mineralogy, identification, care, lapidary craft, interiors and documented cultural history—with traditional beliefs clearly labelled as a separate subject.
Chrysocolla
Blue-green colour can range from soft turquoise to saturated teal depending on associated minerals. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Sodalite
Deep denim to royal blue with white veining gives it a graphic, stone-like appearance. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Kyanite
Blue blades often show striations and a glassy-to-pearly lustre. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Turquoise
Colour ranges from sky blue to greenish blue and may include brown or black matrix. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Larimar
Ocean-like blue-and-white patterns are the signature visual feature. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Iolite
Its directional colour change is one of the most useful visual clues for identification. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Fluorite
Cubic crystals and sharp colour zoning make fluorite one of the most architectural-looking display minerals. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Agate
Pattern, banding and translucency are usually more important than a single “grade”. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Tiger’s Eye
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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