mineral

Tumbled quartz-rich stone, likely rose quartz

Quartz (SiO₂), probably iron-bearing rose quartz

AI-generated identification · may be incorrect

Hardness 7 Mohs; pale pink to peach, translucent, with a vitreous-to-waxy luster and irregular fracture rather than cleavage. The rounded surface appears tumbled or naturally weathered, and the reddish areas may be iron staining or matrix.

Identified August 31, 2026More mineral →

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Physical properties

Formation & geological history

Quartz crystallizes from silica-rich igneous or hydrothermal fluids; rose coloration commonly results from microscopic inclusions or trace iron. Quartz is found in rocks of many ages, so age cannot be determined from the photograph.

Uses & applications

Used for carvings, ornaments, lapidary pieces, and inexpensive jewelry; quartz is also important industrially in glass, ceramics, electronics, and abrasives.

Geological facts

Quartz is one of Earth’s most abundant minerals and is exceptionally resistant to weathering. Pink coloration alone is not diagnostic, since feldspar and calcite can look similar.

Field identification & locations

Field tests include scratching glass with an uncoated edge and checking for hardness near 7; quartz lacks cleavage and commonly shows conchoidal fracture. Common sources include Brazil, Madagascar, India, and the United States.