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Phosphate

Smrkovecite

Bi₂O(OH)(PO₄)
Hardness4–5
Crystal systemMonoclinic
ClassPhosphate
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Smrkovecite specimen

Smrkovecite Locality: Smrkovec (Schönficht), Slavkovský Les Mtn, Mariánské Lázně (Marienbad), Karlovy Vary Region, Czech Republic White smrkovecite with some minor yellow bismutoferrite. Field of view 3 mm. — Photo: Leon Hupperichs · CC BY-SA 3.0

Smrkovecite

Smrkovecite is an IMA-recognized mineral species in the phosphate class, with the chemical formula Bi₂O(OH)(PO₄).

It crystallizes in the monoclinic crystal system (space group P2/c). It is a member of the Atelestite structural group.

Key properties: Mohs hardness 4–5; specific gravity 6.69; Vitreous to adamantine luster; optically biaxial.

IMA symbol Skc, IMA status: approved, named in 1993.

A rare secondary mineral formed by weathering, found in old mine dumps at an Ag–Bi–As–U deposit.

It is found associated with Quartz, atelestite, bismutite, bismutoferrite, eulytite, metatorbernite, petitjeanite, preisingerite, pucherite, retgersite, sillénite.

The name refers to its first-noted occurrence near Smrkovec, Czech Republic.

Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet. Browse more S minerals or help write this entry.