mineral
Clear Quartz
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 on the Mohs scale. Color: Colorless/Transparent. Luster: Vitreous. Crystal Structure: Hexagonal (trigonal). Cleavage: None (conchoidal fracture). Specific Gravity: 2.65.
- Hardness
- 7 on the Mohs scale
- Color
- Colorless/Transparent
- Luster
- Vitreous
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Physical properties
Hardness: 7 on the Mohs scale. Color: Colorless/Transparent. Luster: Vitreous. Crystal Structure: Hexagonal (trigonal). Cleavage: None (conchoidal fracture). Specific Gravity: 2.65.
Formation & geological history
Formed in various geological environments, most commonly in igneous rocks like granite pegmatites and metamorphic rocks. This specimen likely originated from the Brazil crystalline shield which is billions of years old.
Uses & applications
Used in electronics for its piezoelectric properties, glass manufacturing, as a gemstone in jewelry, and widely collected as metaphysical or decorative specimens.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. The location provided (Minas Gerais, Brazil) is world-famous for producing some of the highest quality quartz crystals on Earth.
Field identification & locations
Identify by its hardness (scratches glass), lack of cleavage, and transparent appearance. Minas Gerais is a primary global source for this mineral.
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