mineral

Clear Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Mohs hardness: 7; Color: Colorless/Transparent; Luster: Vitreous; Crystal system: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture; Specific gravity: 2.65

Hardness: 7
Color: Colorless/Transparent
Luster: Vitreous

Identified July 3, 2026More mineral →

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Physical properties

Mohs hardness: 7; Color: Colorless/Transparent; Luster: Vitreous; Crystal system: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture; Specific gravity: 2.65

Formation & geological history

Formed during the final stages of cooling in igneous rocks (pegmatites), in hydrothermal veins, and in metamorphic environments. It is found in all geological ages.

Uses & applications

Used in electronics (oscillators), manufacturing glass, abrasives, jewelry (gemstones), and as decorative display specimens.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Its piezoelectric properties make it essential for timing in watches and computers.

Field identification & locations

Identify by its hardness (scratches glass), conchoidal fracture, and lack of cleavage. Often found in riverbeds or near mountain ranges with volcanic history.