Rock Identifier
Tumbled milky quartz (Quartz, SiO₂) — mineral
mineral

Tumbled milky quartz

Quartz, SiO₂

AI-generated identification · may be incorrect

Hardness 7 Mohs; cream-white to pale orange with a vitreous-to-waxy surface. Trigonal crystal structure; no cleavage, with conchoidal fracture. The rounded shape and finish suggest natural water wear or tumbling.

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Physical properties

Hardness 7 Mohs; cream-white to pale orange with a vitreous-to-waxy surface. Trigonal crystal structure; no cleavage, with conchoidal fracture. The rounded shape and finish suggest natural water wear or tumbling.

Formation & geological history

Quartz crystallizes from silica-rich fluids in veins and cavities, or occurs in many igneous and metamorphic rocks. Quartz formed across many geological ages; this image does not establish the specimen’s precise source or age.

Uses & applications

Commonly collected or used for lapidary work, beads, and decorative objects; quartz also has major industrial uses in glass and electronics.

Geological facts

Quartz is one of Earth’s most abundant minerals and resists weathering, allowing rounded pebbles to accumulate in rivers and beaches.

Field identification & locations

Identify by its hardness, glassy fracture, and lack of cleavage; the pale orange color may result from iron staining. Common worldwide in veins, granites, and stream gravels.