Slavkovite
Slavkovite is an IMA-recognized mineral species in the arsenate class, with the chemical formula Cu₁₃(AsO₄)₆(AsO₃OH)₄·23H₂O.
It crystallizes in the triclinic crystal system (space group P-1).
Key properties: Mohs hardness 3.5–4; specific gravity 3.05; White streak; Vitreous luster; optically biaxial.
IMA symbol Sav, IMA status: approved, named in 2004.
A secondary mineral developed during the weathering of primary tennantite and chalcopyrite in a complex polymetallic hydrothermal vein deposit.
It is found associated with Lavendulan, geminite, lindackerite, ondrušite (Jáchymov); amorphous Cu, Fe arsenates and clay minerals (Krásno district).
The name refers to Horní Slavkov, Czech Republic, from where the first specimens were 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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