mineral

White Quartz (Tumbled/Waterworn)

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness: 7 on Mohs scale. Color: White to milky white. Luster: Vitreous to greasy. Crystal system: Trigonal. Cleavage: None, exhibits conchoidal fracture. Specific gravity: 2.65.

Hardness: 7 on Mohs scale
Color: White to milky white
Luster: Vitreous to greasy

Identified August 4, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale. Color: White to milky white. Luster: Vitreous to greasy. Crystal system: Trigonal. Cleavage: None, exhibits conchoidal fracture. Specific gravity: 2.65.

Formation & geological history

Formed in various geological environments, predominantly in igneous rocks like granite and pegmatites, as well as hydrothermal veins. This specimen shows signs of mechanical weathering, such as being tumbled or waterworn into a smooth, rounded shape.

Uses & applications

Used in decorative items, lapidary arts, tumbled stone collections, and sometimes in glassmaking or electronics.

Geological facts

Quartz is one of the most abundant minerals in the Earth's continental crust. Its smooth, bean-like shape is typically the result of prolonged water action in a riverbed or ocean shore.

Field identification & locations

Easily identified by its high hardness (scratches glass), lack of cleavage, and smooth, rounded appearance from tumbling. Found globally in alluvial deposits, riverbeds, and beaches.