mineral

Quartz-rich rock, likely milky quartz vein material

Mostly quartz (SiO₂); exact rock type cannot be determined from the image alone

AI-generated identification · may be incorrect

Pale tan to white, opaque to translucent patches with a vitreous luster and irregular fracture; quartz hardness is 7 Mohs, with no cleavage. The specimen appears massive rather than distinctly crystalline.

Identified September 26, 2026More mineral →

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Physical properties

Formation & geological history

Likely formed when silica-rich fluids filled fractures and crystallized; the host rock, location, and geological age cannot be established from the photograph.

Uses & applications

Quartz is used in glassmaking, electronics, and decorative stone; attractive specimens are collected, though this piece appears rough and common.

Geological facts

Quartz is one of Earth’s most abundant minerals and occurs in many rock types and vein deposits.

Field identification & locations

Look for hardness sufficient to scratch glass, lack of cleavage, and a glassy fracture; common worldwide in veins and many igneous, metamorphic, and sedimentary settings. The image does not support a more specific field identification.