Innelite
Innelite is an IMA-recognized mineral species in the silicate class, with the chemical formula Ba₄Ti₂Na(NaCa)Ti(Si₂O₇)₂[(SO₄)(PO₄)]O₂[O(OH)].
It crystallizes in the triclinic crystal system (space group P-1). It is a member of the Seidozerite-Lamprophyllite structural group.
Key properties: Mohs hardness 4.75; specific gravity 3.96; Vitreous on cleavages, slightly resinous on fractures luster; optically biaxial.
IMA symbol Inn, IMA status: approved, named in 1961.
Found in miarolitic cavities of aegirine-eckermannite-microcline pegmatites in dunites; in pulaskite and shonkinite.
It is found associated with Natrolite, albite, lorenzenite, batisite.
The name comes from the Yakut name, Inneli, for the Inagli River, Yakutia, Russia.
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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