mineral
Quartz with Inclusions
Silicon Dioxide (SiO2)
Hardness: 7 on Mohs scale; Color: Colorless to white with green or metallic inclusions; Luster: Vitreous to greasy; Crystal Structure: Trigonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65
- Hardness
- 7 on Mohs scale
- Color
- Colorless to white with green or metallic inclusions
- Luster
- Vitreous to greasy
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Physical properties
Hardness: 7 on Mohs scale; Color: Colorless to white with green or metallic inclusions; Luster: Vitreous to greasy; Crystal Structure: Trigonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65
Formation & geological history
Formed in hydrothermal veins, pegmatites, and various igneous, metamorphic, and sedimentary environments over millions of years.
Uses & applications
Used in electronics, frequency control, optics, ornamental carvings, and gemstone collection.
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust and exhibits piezoelectric properties, meaning it can generate an electrical charge under mechanical stress.
Field identification & locations
Easily identified by its high hardness (scratches glass), conchoidal fracture, and lack of cleavage. Found worldwide in nearly all geological environments.
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