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Stishovite

Origin Of Name
Named after S.M. Stishov, an early investigator of high-pressure Silicon dioxide polymorphs

    Copyright: Geology.today

Stishovite, a rare, high-pressure polymorphs of Silicon dioxide, is known only from meteor impact craters

Physical Properties
. Hardness- 7 to 8
. Specific Gravity- 4.30
. Clevage- (110)
. Fracture- Conchoidal
. Luster- Vitreous
. Transparency- Transparent to translucent
. Colour- Colourless
. Streak- White

Crystal System- Tetragonal

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