Liebermannite

liebermannite

ligunite

maskelynite

titanomagnetite

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Formula: KAlSi3O8
Tectosilicate, high-pressure paramorph of kokchetavite, microcline, orthoclase and sanidine
Crystal System: Tetragonal
Specific gravity: 3.975 calculated
Environments

Meteorites

Liebermannite is a relatively new mineral, approved in 2013. Localities

At the type locality, the Zagami Martian meteorite, Faskari, Katsina, Nigeria, is a Martian-enriched basaltic shergottite with abundant black shock veins. It is one of only five Martian meteorite falls (observed during descent) versus ~100 Martian meteorite finds (not observed during descent) (https://onlinelibrary.wiley.com/doi/full/10.1111/maps.13000).
liebermannite is a shock-generated, high-pressure mineral formed via solid-state transformation of primary igneous K-feldspar in a Martian-enriched basaltic shergottite meteorite. It has been found in two assemblages; assemblage 1 with lingunite, silica, ilmenite, baddeleyite, augite-pigeonite, maskelynite and titaniferous magnetite, and assemblage 2 with silica, chlorapatite and baddeleyite (HOM). Other reported associates include merrillite, fayalite and apatite (Mindat).

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