Altisite
An exceedingly rare titanium aluminosilicate chloride from alkaline pegmatites, named for aluminium, titanium and silicon.
Intro adapted from Wikipedia (CC BY-SA).
Altisite is an IMA-recognized mineral species in the silicate class, with the chemical formula Na₃K₆Ti₂Al₂Si₈O₂₆Cl₃.
It crystallizes in the monoclinic crystal system (space group C2/m). It is a member of the Lemoynite structural group.
IMA symbol Ati, IMA status: approved, named in 1993.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data and a Wikipedia introduction — a full written entry hasn’t been published yet.
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