Chromschieffelinite
Chromschieffelinite is an IMA-recognized mineral species in the chromate class, with the chemical formula Pb₁₀Te⁶⁺₆O₂₀(OH)₁₄(CrO₄)(H₂O)₅.
It crystallizes in the orthorhombic crystal system (space group C222_1). It is a member of the Schieffelinite structural group.
Key properties: Mohs hardness 2; specific gravity 5.892; Pale yellow streak; Adamantine luster; optically biaxial.
IMA symbol Csfl, IMA status: approved, named in 2011.
Found as a secondary mineral in the oxidized zone of a telluride and galena deposit.
It is found associated with Chalcopyrite, chrysocolla, galena, goethite, hematite, khinite, pyrite, wulfenite.
As the chromate analog of schieffelinite.
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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