Adrianite
Adrianite is an IMA-recognized mineral species in the silicate class, with the chemical formula Ca₁₂(Al₄Mg₃Si₇)O₃₂Cl₆.
It crystallizes in the cubic crystal system (space group I-43d).
Key properties: specific gravity 3.03.
IMA symbol Adt, IMA status: approved, named in 2014.
Found in altered areas along veins between primary melilite, spinel, and Ti-Al-diopside in a Type B1 FUN (Fractionation and Unidentified Nuclear effects) Ca-Al-rich inclusion (CAI), Egg-3.
It is found associated with Monticellite, grossular, wadalite, hutcheonite.
The mineral was named to honor Adrian J. Brearley (b. 1958), mineralogist and cosmochemist at the University of New Mexico, in recognition of his many contributions to meteorite mineralogy.
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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