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Silicate

Betalomonosovite

Na₅₊ₓTi₄(Si₂O₇)₂[PO₃(OH)]₂₋ᵧ[PO₂(OH)₂]ᵧO₂[(OH,F)₂₋ₓOz], [0<x<2, 0<y<1, 0<z<1]
Crystal systemTriclinic
ClassSilicate
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Betalomonosovite specimen

Tan crystals of the very rare mineral betalomonosovite from Rasvumtchorr mount (Khibiny, Kola, Russian Federation), one of the very few known localities worldwide. — Photo: David Hospital · CC BY-SA 4.0

Betalomonosovite

Betalomonosovite is an IMA-recognized mineral species in the silicate class, with the chemical formula Na₅₊ₓTi₄(Si₂O₇)₂[PO₃(OH)]₂₋ᵧ[PO₂(OH)₂]ᵧO₂[(OH,F)₂₋ₓOz], [0<x<2, 0<y<1, 0<z<1].

It crystallizes in the triclinic crystal system (space group P-1). It is a member of the Seidozerite-Murmanite structural group.

IMA symbol Blom, IMA status: approved, named in 1950.

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 B minerals or help write this entry.