mineral

Tumbled Quartz

Silicon Dioxide (SiO2)

Hardness: 7 on the Mohs scale. Color: White to translucent with brown, reddish, or amber iron-oxide staining. Luster: Vitreous (glassy) to greasy. Crystal structure: Trigonal. Cleavage: None (conchoidal fracture). Specific Gravity: 2.65.

Hardness: 7 on the Mohs scale
Luster: Vitreous (glassy) to greasy

Identified July 31, 2026More mineral →

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Physical properties

Formation & geological history

Formed in a wide variety of geological environments, frequently in hydrothermal veins, pegmatites, and as a primary component of igneous, metamorphic, and sedimentary rocks. The specimen shows signs of water-rolling or artificial tumbling, smoothing its edges.

Uses & applications

Used in jewelry, decorative items, lapidary arts, and metaphysical practices. Quartz is also heavily used in industry for electronics, glassmaking, and oscillators.

Geological facts

Quartz is one of the most abundant and widely distributed minerals on Earth's continental crust. Its piezoelectric properties make it essential in modern timekeeping and electronics.

Field identification & locations

Easily identified by its hardness (scratches glass), lack of cleavage, and glassy luster. Commonly found worldwide in riverbeds, beaches, and mineral deposits.