metamorphic

Quartz-rich rock, possibly quartzite

Quartzite (dominantly quartz, SiO₂); identification is provisional from the photo

AI-generated identification · may be incorrect

Small, pale gray-beige, rough and granular specimen with a dull to faintly glassy luster. Quartz has Mohs hardness 7, a trigonal crystal structure, no cleavage, and specific gravity about 2.65; a hand specimen cannot confirm quartzite versus another quartz-rich rock.

Identified September 24, 2026More metamorphic →

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Physical properties

Formation & geological history

Quartzite forms when quartz-rich sandstone is metamorphosed and its grains recrystallize; age depends on the source rock and metamorphic event. The reported location in eastern Morocco is regionally plausible for varied sedimentary and metamorphic rocks, but does not establish this specimen’s origin.

Uses & applications

Quartzite is used as decorative and construction stone, aggregate, and sometimes silica feedstock. This small, unpolished piece has little commercial value.

Geological facts

Quartzite is usually hard enough to scratch glass, and fractures through grains rather than around them. A photo alone cannot distinguish it confidently from weathered quartz or another pale, quartz-rich rock.

Field identification & locations

Look for interlocking, sugary quartz grains and test whether it scratches glass; avoid destructive tests if it is a valued find. Similar rocks occur widely, so precise locality and examination are needed for identification.