mineral

Clear Quartz (Tumbled)

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale; Color: Colorless/Transparent; Luster: Vitreous; Crystal Structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture).

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

Identified July 21, 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).

Formation & geological history

Forms in a wide variety of geological environments, most notably in igneous rocks like granite and pegmatites, and in hydrothermal veins. Some specimens date back millions of years.

Uses & applications

Extensively used in jewelry (as gemstones), electronics (piezoelectric properties), glassmaking, and by collectors for its aesthetic and metaphysical appeal.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Its name comes from the Greek word 'krustallos', meaning ice.

Field identification & locations

Identified by its crystal habit, hardness (will scratch glass), and lack of cleavage. Tumbled stones are common in metaphysics shops and rock collections.