metamorphic
Quartzite or Quartz Vein Material
SiO2
AI-generated identification · may be incorrectHardness: 7, Color: White, gray, yellowish, reddish due to iron oxides. Luster: Vitreous to greasy. Crystal structure: Massive/granular. Cleavage: None, exhibits conchoidal fracture.
- Hardness
- 7, Color: White, gray, yellowish, reddish due to iron oxides
- Color
- White, gray, yellowish, reddish due to iron oxides
- Luster
- Vitreous to greasy
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Physical properties
Hardness: 7, Color: White, gray, yellowish, reddish due to iron oxides. Luster: Vitreous to greasy. Crystal structure: Massive/granular. Cleavage: None, exhibits conchoidal fracture.
Formation & geological history
Formed from the metamorphism of quartz-rich sandstone or as hydrothermal quartz veins deposited in fractures.
Uses & applications
Used in construction, as a decorative stone, railway ballast, and in the production of glass and silicon.
Geological facts
Quartz is one of the most abundant minerals in the Earth's crust. Its resistance to weathering makes it a common component of many landscapes.
Field identification & locations
Identified by its hardness (will scratch glass), conchoidal fracture, and vitreous luster. Commonly found worldwide.
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