mineral

Weathered quartz-rich rock, possibly milky quartz or quartzite

Quartz (SiO₂), potentially quartzite if metamorphic

AI-generated identification · may be incorrect

Pale translucent white to gray with peach-orange iron staining; glassy to waxy luster, irregular fracture, and no obvious cleavage. Quartz hardness is Mohs 7; the specimen appears massive rather than distinctly crystalline.

Identified August 27, 2026More mineral →

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Physical properties

Formation & geological history

Likely formed from silica-rich hydrothermal or igneous material; if quartzite, it began as sandstone metamorphosed under heat and pressure. Orange coloration is probably surface oxidation of iron-bearing inclusions; precise age and origin require testing.

Uses & applications

Common quartz is used in glass, ceramics, abrasives, electronics, and engineered stone; attractive pieces are sold as decorative or lapidary material.

Geological facts

Quartz is one of Earth’s most abundant minerals and has strong resistance to weathering. The translucent appearance and iron staining can resemble low-grade agate or chalcedony.

Field identification & locations

Common in quartz veins, pegmatites, stream gravels, and metamorphic terrains worldwide. A glass-scratch test, hardness test, and specific-gravity measurement help distinguish quartz from calcite or glass.