Found as lamellae occurring together with dense silica glass lamellae in composite silica grains in the heavily shocked Martian meteorite. Polymorphous with quartz.
IMA Status:
Approved IMA 2004 (Dana # Added)
Locality:
Shergotty SNC meteorite. Shergotty is a basaltic achondrite that fell on August 25, 1865 in Bihar State in India. Link to MinDat.org Location Data.
Name Origin:
Name for Friedrich A. Seifert (b. 1941), founding Director of the Bayerische Geoinstitut, Universit�t Bayreuth, Germany, for his important contributions to high-pressure geoscience.
Chemical Formula: