mineral

Clear Quartz

Silicon Dioxide (SiO2)

Hardness: 7 (Mohs scale); Color: Colorless to white; Luster: Vitreous (glassy); Crystal Structure: Hexagonal (Trigonal); Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Hardness: 7 (Mohs scale)
Color: Colorless to white
Luster: Vitreous (glassy)

Identified June 4, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs scale); Color: Colorless to white; Luster: Vitreous (glassy); Crystal Structure: Hexagonal (Trigonal); Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Formation & geological history

Formed through the crystallization of magma or from hydrothermal veins. It is one of the most common minerals in the Earth's crust and can be found in almost all geological environments and ages.

Uses & applications

Used in electronics (oscillators), optical instruments, glassmaking, jewelry (gemstones), and popular in the metaphysical/collecting community.

Geological facts

Quartz is piezoelectric, meaning it generates an electric charge when mechanical pressure is applied. This property makes it essential for keeping time in watches and clocks.

Field identification & locations

Identify in the field by its hardness (it can scratch glass and steel), lack of cleavage, and glassy conchoidal fractures. It is found globally, notably in Brazil and Arkansas, USA.