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Silicate

Hainite-(Y)

(Ca₃Y)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂
Crystal systemTriclinic
ClassSilicate
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Hainite-(Y) specimen

Outstanding long yellow prismatic crystals of the very rare REE mineral hainite-(Y) from Bortolan Quarry (Pocos de Caldas, Minas Gerais, Brazil). — Photo: David Hospital · CC BY-SA 4.0

Hainite-(Y)

Hainite-(Y) is an IMA-recognized mineral species in the silicate class, with the chemical formula (Ca₃Y)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂.

It crystallizes in the triclinic crystal system (space group P1). It is a member of the Seidozerite-Rinkite structural group.

IMA symbol Hai-Y, IMA status: approved, named in 1893.

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 H minerals or help write this entry.