Irinarassite
Irinarassite is an IMA-recognized mineral species in the silicate class, with the chemical formula Ca₃Sn₂(SiAl₂)O₁₂.
It crystallizes in the cubic crystal system (space group Ia-3d). It is a member of the Garnet structural group.
Key properties: specific gravity 4.301; Ashy yellow streak.
IMA symbol Inr, IMA status: approved, named in 2010.
Found in a metasomatically-altered (sanidinite facies), carbonate-silicate xenolith in ignimbrite.
It is found associated with Lakargiite, tazheranite, baddeleyite, baghdadite, magnesioferrite.
The mineral was named to honor Irina Teodorovna Rass, staff member since 1962 of the D. Korzhinskii Laboratory of Metamorphism and Metasomatism, Institute of Geology of Ore Deposits, Petrography.
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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