mineral

Tumbled pale quartz, likely milky quartz

Quartz (SiO₂)

AI-generated identification · may be incorrect

Translucent cream to pale gray, vitreous luster, and rounded tumbler-polished surface; Mohs hardness 7, hexagonal crystal system, no cleavage, and specific gravity about 2.65.

Identified October 8, 2026More mineral →

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Physical properties

Translucent cream to pale gray, vitreous luster, and rounded tumbler-polished surface; Mohs hardness 7, hexagonal crystal system, no cleavage, and specific gravity about 2.65.

Formation & geological history

Quartz crystallizes from silica-rich fluids in veins and igneous or metamorphic rocks; its geological age depends on its source. The rounded shape is produced by human tumbling and polishing.

Uses & applications

Commonly used for jewelry, ornaments, and mineral collections; quartz is also important in glassmaking and electronics.

Geological facts

Quartz is one of Earth’s most abundant minerals and can show many colors depending on impurities and inclusions.

Field identification & locations

The photo suggests a small tumbled quartz pebble, but its exact variety cannot be confirmed visually. Quartz is widespread worldwide; hardness and lack of cleavage help distinguish it from softer look-alikes.