mineral
White Quartz
Silicon Dioxide (SiO2)
Hardness: 7 on Mohs scale. Color: White to milky white. Luster: Vitreous to greasy. Crystal system: Trigonal. Cleavage: None (exhibits conchoidal fracture). Specific gravity: 2.65
- Hardness
- 7 on Mohs scale
- Color
- White to milky white
- Luster
- Vitreous to greasy
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Physical properties
Hardness: 7 on Mohs scale. Color: White to milky white. Luster: Vitreous to greasy. Crystal system: Trigonal. Cleavage: None (exhibits conchoidal fracture). Specific gravity: 2.65
Formation & geological history
Formed in a wide variety of geological environments, commonly in hydrothermal veins, pegmatites, and as a primary component of igneous, metamorphic, and sedimentary rocks.
Uses & applications
Used in electronics, oscillators, glassmaking, abrasives, and as a semi-precious gemstone or tumbled stone in jewelry and lapidary arts.
Geological facts
Quartz is one of the most abundant minerals in the 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 hardness (scratches glass), lack of cleavage, and typical glassy or milky appearance. Found globally in almost all rock types.
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