mineral

Clear Quartz (Tumbled)

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness: 7 on Mohs scale; Color: Colorless to white/milky; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: None

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

Identified July 11, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Colorless to white/milky; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: None

Formation & geological history

Forms in a wide range of geological environments, most commonly from the cooling of magma or in hydrothermal veins and pegmatites. Found across all geological ages.

Uses & applications

Used in electronics (oscillators), clocks, glassmaking, and extensively in jewelry, lapidary arts, and spiritual practice.

Geological facts

Quartz is one of the most abundant minerals in Earth's continental crust. Pure clear quartz is also known as 'Rock Crystal', a name derived from the Greek word 'krystallos' meaning ice.

Field identification & locations

Identify by its hardness (scratches glass), glassy luster, and lack of cleavage. Tumbled stones like this are commonly found in gift shops and mineral kits globally.