mineral

Quartz-rich rock, likely milky quartz vein material

Predominantly quartz (SiO₂); exact rock type cannot be determined from the photo alone

AI-generated identification · may be incorrect

Pale white to gray with a dull-to-glassy luster and irregular fracture; quartz has Mohs hardness 7 and a trigonal crystal structure, but this small, weathered specimen shows no distinct crystals. It may contain minor iron staining or other inclusions.

Identified October 7, 2026More mineral →

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Physical properties

Formation & geological history

Likely formed when silica-rich fluids filled fractures and crystallized as a quartz vein; its age and precise formation setting cannot be established visually.

Uses & applications

Commonly collected as a specimen; quartz is also used in glassmaking, electronics, and ornamental stone, though this piece appears mainly decorative.

Geological facts

Quartz is among Earth’s most abundant minerals and resists weathering, so vein fragments often persist in soil and stream gravel.

Field identification & locations

Look for hardness sufficient to scratch glass and absence of cleavage; quartz commonly occurs in veins in many rock types worldwide. The image is insufficient to confirm purity or identify the inclusions.