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Quartz

Origin of Name
From German, quartz, of unknown origin

Note: Quartz name was first used by Georgius Agricola in 1530.

    Copyright:geologyin.com

Quartz is composed of one Silica and two Oxygen. It is silicon dioxide. It is abundant in igneous, sedimentary, and metamorphic rocks.

Physical Properties
. Hardness- 7
. Specific Gravity- 2.65
. Clevage- No clevage
. Fracture- Conchoidal fracture
. Luster- Vitreous
. Transparency- Transparent to translucent
. Colour- Colourless, white, milky, grey, purple, pink, yellow, brown or black
. Streak- White

Crystal System- Hexagonal
Uses- Glass making, gemstones, petroleum industry
Silicate Structure- Tectosilicate










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