Poitevinite

poitevinite

Images

Formula: Cu(SO₄₂O
Valence: Cu²⁺S⁶⁺O₄.H₂O
Hydrated sulphate of copper
Crystal system: Triclinic
Specific gravity: 3.30 measured, 3.30 calculated
Hardness: 3 to 3½
Colour: Salmon-pink
Solubility: Soluble in water
Environments

Hydrothermal environments

Localities

At the type locality, the Maggie claim group, Kamloops Mining Division, British Columbia, Canada, naturally occurring mineral poitevinite is very fine grained, powdery to vermiform (worm-like) and salmon-coloured. The pure end member is pale blue (CM 8.1.109-110).
Poitevinite is a rare secondary mineral in the oxidised zone of the base-metal hydrothermal mineral prospect. Associated minerals include quartz, gypsum, pyrite, bonattite and scorodite (HOM).
Poitevinite from the Maggie claim group - Image

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