Rock Identifier
Polished pink quartz cabochon (Quartz (SiO₂), likely rose quartz or included quartz) — gemstone
gemstone

Polished pink quartz cabochon

Quartz (SiO₂), likely rose quartz or included quartz

AI-generated identification · may be incorrect

Mohs hardness 7; pale pink, translucent, vitreous-to-waxy luster, massive rather than visibly crystalline, with conchoidal fracture and no cleavage. The oval cabochon is polished and may show internal veils or inclusions.

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Physical properties

Mohs hardness 7; pale pink, translucent, vitreous-to-waxy luster, massive rather than visibly crystalline, with conchoidal fracture and no cleavage. The oval cabochon is polished and may show internal veils or inclusions.

Formation & geological history

Quartz crystallizes from silica-rich igneous and hydrothermal fluids; pink coloration commonly reflects microscopic inclusions or trace elements. Rose quartz deposits are chiefly Precambrian to younger granitic and pegmatitic environments.

Uses & applications

Used for cabochons, beads, carvings, ornamental objects, and inexpensive jewelry; quartz is also important industrially in glass, ceramics, electronics, and abrasives.

Geological facts

Natural rose quartz is commonly cloudy and translucent rather than transparent; star rose quartz can display asterism when properly cut. The image alone cannot confirm whether the stone is rose quartz, pink chalcedony, or synthetic glass.

Field identification & locations

Check for bubbles, uniform color, or unusually low hardness to detect glass; quartz scratches ordinary glass but should not be scratched by a steel knife. Common sources include Brazil, Madagascar, India, and South Africa.