Nitride, osbornite group
Specific gravity: 5.25
Colour: Golden yellow
Osbornite is a very rare natural nitride, originally formed in star dust and now almost exclusively found in meteorites,
commonly associated with corundum. Synthetic titanium nitride is a very important
At the type locality, the Bustee meteorite, Gorakhpur, Basti District, Uttar Pradesh, India, osbornite occurs as inclusions in oldhamite in an enstatite achondrite meteorite, associated with oldhamite and diopside (HOM, Mindat).
In Russia, from an undefined locality “near the junction of the Azov block with the Donbas” as inclusions in corundum, in weathered detritus from a pipelike body containing breccia with an alkalic ultramafic cement. Associated minerals include corundum, iron, perovskite and iron silicides (HOM).
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