mineral

Clear Quartz

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale; Color: Colorless/Transparent; Luster: Vitreous; Crystal Structure: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65

Hardness: 7 on Mohs scale
Color: Colorless/Transparent
Luster: Vitreous

Identified June 7, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Colorless/Transparent; Luster: Vitreous; Crystal Structure: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65

Formation & geological history

Forms in all types of geological environments but primarily crystallizes from magma or precipitates from hydrothermal veins. It is found in igneous, metamorphic, and sedimentary rocks across all geological ages.

Uses & applications

Used in electronics for its piezoelectric properties, glassmaking, abrasives, and as a popular gemstone for jewelry and metaphysical collecting.

Geological facts

Quartz is one of the most abundant minerals in Earth's continental crust. Its name comes from the German word 'quarz', which originally meant 'hard'.

Field identification & locations

Identify by its hardness (will scratch glass), lack of cleavage, and transparent appearance. Commonly found worldwide, especially in mountain ranges and silica-rich river beds.