Ahrensite
Ahrensite is an IMA-recognized mineral species in the silicate class, with the chemical formula SiFe₂O₄.
It crystallizes in the cubic crystal system (space group Fd-3m). It is a member of the Spinel structural group.
Key properties: specific gravity 4.26.
IMA symbol Ahr, IMA status: approved, named in 2013.
From the transformation of fayalite-rich rims of olivine megacrysts or Fe-rich microphenocrysts in contact with shock melt pockets in an olivine-phyric shergottite meteorite [TL].
It is found associated with Bridgmanite, ringwoodite, wüstite, stishovite, olivine, ilmenite.
The mineral was named to honor California Institute of Technology geophysicist Thomas J.
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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