Ferrokinoshitalite
Ferrokinoshitalite is an IMA-recognized mineral species in the silicate class, with the chemical formula BaFe²⁺₃(Si₂Al₂)O₁₀(OH)₂.
It crystallizes in the monoclinic crystal system (space group C2/m).
Key properties: Mohs hardness 3; specific gravity 3.69; Green streak; Vitreous luster.
IMA symbol Fkns, IMA status: approved, named in 1999.
Found in massive Pb-Zn-Cu-Ag sulfide orebodies in banded iron formation that underwent high-grade metamorphism.
It is found associated with Quartz, magnetite, spessartine-rich garnet, apatite, sillimanite, ferroan gahnite, Mn-rich grunerite, manganogrunerite, manganoan fayalite.
Prefix, ferro, indicates the Fe2+-dominant analog of kinoshitalite.
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 F minerals or help write this entry.