mineral

Pink chalcedony (rose quartz–like quartz)

Microcrystalline quartz, SiO₂; possibly quartz-rich rhyolite or jasper

AI-generated identification · may be incorrect

Hardness about 6.5–7 Mohs; pale pink to milky white, translucent, with a waxy to vitreous luster and no obvious cleavage. The irregular fracture and granular/microcrystalline texture are consistent with chalcedony, though the image alone cannot exclude massive rose quartz or altered rhyolite.

Identified August 30, 2026More mineral →

Explore Pink chalcedony (rose quartz–like quartz) in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Forms when silica-rich fluids fill cavities and fractures, commonly in volcanic rocks; coloration may result from iron or microscopic inclusions. Deposits range from Precambrian to young volcanic settings.

Uses & applications

Used for cabochons, carvings, lapidary pieces, and ornamental stone; poorer material is sold as rough specimen material. Typical value is modest unless strongly colored, translucent, or attractively patterned.

Geological facts

Chalcedony is quartz composed of tightly intergrown microscopic crystals, so individual crystal faces are usually absent. Pink material is often marketed broadly as pink chalcedony, rose quartz, or pink jasper.

Field identification & locations

Look for waxy luster, translucency, conchoidal fracture, and hardness sufficient to scratch glass; acid produces no reaction. Common sources include Brazil, Madagascar, India, Namibia, and the western United States.