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Quartz
Quartz
Other Names:
Quartz
Pronunciation:
kworts
Type:
Silicate
Classification:
Silicate
Chemical Formula/Composition:
SiO2, Silicon Dioxide, or Silica
Luster:
glass like (vitreous), waxy, dull
Color:
Clear, Purple (amethyst), white (Milky quartz) Black (smoky quartz), pink (rose quartz), yellow or orange (Citrine)
Transparency:
Transparent
Mohs Hardness:
7
Fracture/Cleavage:
conchoidal
Uses:
Jewelry and gemstones, glassmaking, watches and clocks, foundry materials, refractory industry, abrasives
Key Features:
A framework silicate mineral with a Hexagonal Crystalline form
Sources:
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