mineral

Clear Quartz Point

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale. Color: Colorless to transparent. Luster: Vitreous (glass-like). Crystal structure: Hexagonal/Trigonal prism terminated with pyramids. Cleavage: None (conchoidal fracture). Specific gravity: 2.65.

Hardness: 7 on Mohs scale
Color: Colorless to transparent
Luster: Vitreous (glass-like)

Identified July 27, 2026More mineral →

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Physical properties

Formation & geological history

Forms primarily in pegmatites, hydrothermal veins, and igneous rocks through the crystallization of silica-rich fluids over millions of years.

Uses & applications

Widely used in electronics (piezoelectric oscillators), optics, lapidary art, jewelry, and crystal healing/metaphysical practices.

Geological facts

Clear quartz, also known as rock crystal, was believed by ancient Greeks to be ice frozen so hard that it could never melt. It exhibits piezoelectric properties, generating electricity when mechanical stress is applied.

Field identification & locations

Identified by its hexagonal crystal form, transparent appearance, high hardness (scratches glass easily), and lack of cleavage. Commonly found globally, with major deposits in Brazil, Madagascar, and the USA (Arkansas).