Strontioperloffite
Strontioperloffite is an IMA-recognized mineral species in the phosphate class, with the chemical formula SrMn²⁺₂Fe³⁺₂(PO₄)₃(OH)₃.
It crystallizes in the monoclinic crystal system (space group P2_1/m). It is a member of the Bjarebyite structural group.
Key properties: Mohs hardness 4.5; specific gravity 3.89; Pale orange streak; Vitreous luster; optically biaxial.
IMA symbol Splf, IMA status: approved, named in 2015.
Found as a secondary mineral in cavities in quartz veins from low-temperature hydrothermal solutions.
It is found associated with Copper, cuprite, mitridatite, rhodochrosite, quartz, goethite.
The strontian analog of perloffite.
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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