Amazonite
Its blue-green colour can resemble tropical water, often crossed by white feldspar streaking. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Editorial guides
Colour: <span>Blue-green</span>
Mineralogy, identification, care, lapidary craft, interiors and documented cultural history—with traditional beliefs clearly labelled as a separate subject.
Green Tourmaline
Crystals may show colour zoning along their length or across cross-sections. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Aquamarine
Pale icy blue crystals can range from opaque collector pieces to transparent gem material. 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.
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