mineral

Quartz Crystal Rock

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness: 7 on Mohs scale; Color: Clear, white, milky, or varied depending on impurities; Luster: Vitreous (glassy); Crystal Structure: Trigonal; Cleavage: None (exhibits conchoidal fracture); Specific Gravity: 2.65

Hardness: 7 on Mohs scale
Color: Clear, white, milky, or varied depending on impurities
Luster: Vitreous (glassy)

Identified August 5, 2026More mineral →

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Physical properties

Formation & geological history

Formed in hydrothermal veins, pegmatites, and as a primary component of igneous, metamorphic, and sedimentary rocks over millions of years.

Uses & applications

Used in electronics, oscillators, glassmaking, abrasives, gemstone carving, and metaphysical 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), lack of cleavage, and glassy luster. Found worldwide in nearly every geological environment.