mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 on Mohs scale; Color: Milky white with orange-yellow iron staining; Luster: Vitreous to greasy; Crystal Structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65
- Hardness
- 7 on Mohs scale
- Color
- Milky white with orange-yellow iron staining
- Luster
- Vitreous to greasy
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Physical properties
Hardness: 7 on Mohs scale; Color: Milky white with orange-yellow iron staining; Luster: Vitreous to greasy; Crystal Structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65
Formation & geological history
Formed through the cooling of silica-rich magma or from hydrothermal veins. Often found in various geological environments ranging from igneous to metamorphic terrains.
Uses & applications
Used widely in glass making, electronics (oscillators), abrasives, construction aggregates, and as gemstones or collector specimens.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. The yellow-orange tint in this specimen is likely due to 'Limonite' or iron oxide coatings on the surface or within fractures.
Field identification & locations
Identify by its ability to scratch glass and steel, lack of cleavage, and characteristic glassy luster. Commonly found in riverbeds, gravel pits, and mountain ranges globally.
