mineral

Tumbled quartz (likely milky or rose quartz)

Quartz, silicon dioxide (SiO₂)

AI-generated identification · may be incorrect

Hardness 7 Mohs; translucent white to pale peach-pink, with a vitreous-to-waxy luster and conchoidal fracture. It lacks cleavage and has a trigonal crystal structure, though tumbling has rounded the specimen.

Identified August 15, 2026More mineral →

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Physical properties

Formation & geological history

Quartz crystallizes from silica-rich hydrothermal fluids, pegmatites, and igneous rocks; its geological age can range from relatively young veins to Precambrian host rocks. The rounded form is human-tumbled and polished.

Uses & applications

Used for inexpensive ornaments, lapidary carvings, décor, and metaphysical collecting; clear varieties are used in optics and electronics. This appears mainly decorative rather than gem-quality.

Geological facts

The peach coloration may reflect iron staining or minor inclusions; true rose quartz commonly owes its color to microscopic dumortierite or related inclusions. Quartz is one of Earth’s most abundant minerals.

Field identification & locations

Identify by its glassy translucence, lack of cleavage, conchoidal fracture, and ability to scratch ordinary glass. Common sources include Brazil, Madagascar, the United States, and numerous quartz-bearing regions worldwide.