Dobšináite
Dobšináite is an IMA-recognized mineral species in the arsenate class, with the chemical formula Ca₂Ca(AsO₄)₂·2H₂O.
It crystallizes in the monoclinic crystal system (space group P2_1/c). It is a member of the Roselite structural group.
Key properties: Mohs hardness 3; specific gravity 3.395; White streak; Vitreous luster; optically biaxial.
IMA symbol Dob, IMA status: approved, named in 2021.
Secondary in siderite-ankerite hydrothermal carbonate-quartz veins with Ni-Fe-Co-Cu mineralization.
It is found associated with Phaunouxite, picropharmacolite, erythrite-hörnesite, gypsum, aragonite (Slovakia).
The name refers to the occurrence near Dobšiná where the studied material was collected.
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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