Tissintite
Tissintite is an IMA-recognized mineral species in the silicate class, with the chemical formula (Ca,Na, )AlSi₂O₆.
It crystallizes in the monoclinic crystal system (space group C2/c). It is a member of the Pyroxene structural group.
Key properties: specific gravity 3.32.
IMA symbol Tss, IMA status: approved, named in 2013.
Found in maskelynite (shocked plagioclase) and is commonly observed included within, or in contact with, shock-melt pockets in a Martian meteorite. Perhaps forms from amorphous plagioclase during decompression.
It is found associated with Maskelynite (shocked plagioclase).
The name refers to the Martian meteorite Tissint, which fell near Tissint, Morocco on 18 July 2011.
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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