Camgasite
Camgasite is an IMA-recognized mineral species in the arsenate class, with the chemical formula CaMg(AsO₄)(OH)·5H₂O.
It crystallizes in the monoclinic crystal system (space group P2_1/m).
Key properties: Mohs hardness 2; specific gravity 2.4; Vitreous luster; optically biaxial.
IMA symbol Cmg, IMA status: approved, named in 1988.
Found as a secondary mineral in a Co–U-rich zone in a polymetallic mineral deposit.
It is found associated with Monohydrocalcite, gypsum, calcite, rapidcreekite, nováčekite, erythrite, hörnesite.
The name refers to Ca, calcium, Mg, magnesium, and As, arsenic, in the composition.
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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