Calciocopiapite, 50 mm, Dashkesan field, Dashkesan region, Azerbaijan, from M.A. Kashkai's collection — Photo: IbrZulya · CC BY-SA 4.0
Calciocopiapite
Calciocopiapite is an IMA-recognized mineral species in the sulfate class, with the chemical formula CaFe³⁺₄(SO₄)₆(OH)₂·20H₂O.
It crystallizes in the triclinic crystal system (space group P-1). It is a member of the Copiapite structural group.
Key properties: Mohs hardness 2–3; specific gravity 2.225.
IMA symbol Ccpi, IMA status: approved, named in 1960.
Found in the oxidized weathering zone of a magnetite–pyrite deposit.
It is found associated with Chalcanthite, malachite, hydrous iron oxides.
As the calcium member of the copiapite group.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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