mineral

Quartz (Tumbled/Water-worn)

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness: 7 on Mohs scale; Color: Translucent white to pale yellow; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.65

Hardness: 7 on Mohs scale
Color: Translucent white to pale yellow
Luster: Vitreous to waxy

Identified July 18, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Translucent white to pale yellow; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.65

Formation & geological history

Formed from silicon-rich hydrothermal solutions or cooling magma. This specimen appears water-worn or tumbled, suggesting it was found in a riverbed, beach, or processed by a rock tumbler.

Uses & applications

Used in jewelry, electronics (piezoelectric properties), glassmaking, and as a popular collector stone.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Its name comes from the German word 'Quarz', which had its origin in Slavic languages.