Isolated white crystal of the extremely rare mineral shkatulkalite from the type and only one of the two known localities worldwide (Shkatulka Pegmatite, Lovozero Massif, Kola, Russian Federation). — Photo: David Hospital · CC BY-SA 4.0
Shkatulkalite
Shkatulkalite is an IMA-recognized mineral species in the silicate class, with the chemical formula Na₂Nb₂Na₃Ti(Si₂O₇)₂O₂(FO)(H₂O)₄(H₂O)₃.
It crystallizes in the monoclinic crystal system. It is a member of the Seidozerite-Lamprophyllite structural group.
IMA symbol Skk, IMA status: approved, named in 1993.
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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