mineral

Tumbled milky quartz pebble

Quartz (silicon dioxide, SiO₂)

AI-generated identification · may be incorrect

Smooth, rounded, translucent white-to-cream material with a vitreous to waxy luster. Mohs hardness 7; no cleavage, conchoidal fracture, trigonal crystal structure, and specific gravity about 2.65.

Identified August 25, 2026More mineral →

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Physical properties

Smooth, rounded, translucent white-to-cream material with a vitreous to waxy luster. Mohs hardness 7; no cleavage, conchoidal fracture, trigonal crystal structure, and specific gravity about 2.65.

Formation & geological history

Likely natural milky quartz shaped by tumbling or water abrasion; microscopic fluid inclusions and fractures scatter light, producing the cloudy appearance. Quartz commonly forms in igneous, metamorphic, and hydrothermal settings from Precambrian to recent ages.

Uses & applications

Used as an inexpensive decorative stone, craft/tumbled specimen, glass and silica source, and occasionally in jewelry. This small piece has modest collector value.

Geological facts

Milky quartz is one of the most abundant quartz varieties; its whiteness results mainly from microscopic inclusions rather than a separate mineral species.

Field identification & locations

Identify it by its glassy translucence, hardness, lack of cleavage, and ability to scratch ordinary glass; it should not fizz in dilute acid. Common worldwide, especially in quartz veins, granites, pegmatites, and river gravels.