metamorphic

Uncertain: likely hematite-stained quartzite or iron-rich metamorphic rock

Quartz-rich, iron-oxide-stained rock; exact identification requires testing

AI-generated identification · may be incorrect

Gray-white, rough and granular with reddish-brown patches consistent with iron oxides. Quartz-rich material is typically Mohs 7 with a vitreous-to-dull luster; the photo does not establish its minerals or texture conclusively.

Identified September 28, 2026More metamorphic →

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Physical properties

Formation & geological history

Could have formed when quartz-rich sandstone was recrystallized during metamorphism, with later iron-oxide staining. Age and formation setting cannot be determined from the image alone.

Uses & applications

Quartzite is used as construction stone, aggregate, and sometimes decorative stone; this unverified hand specimen has no evident gem use.

Geological facts

The reddish areas may be hematite or other iron oxides, but color alone cannot confirm mineral identity.

Field identification & locations

A fresh broken surface, hardness test, and close inspection of grains can help distinguish quartzite from other iron-stained rocks. Provenance is needed for a reliable identification.