mineral

Likely quartz-bearing rock fragment

Quartz (SiO₂), possibly with iron-oxide staining or other mineral inclusions

AI-generated identification · may be incorrect

Small, rough fragment with gray translucent areas and cream-to-tan patches; quartz has Mohs hardness 7, a vitreous luster, and trigonal crystal structure, with no cleavage and conchoidal fracture. The image alone does not show enough detail for a confident exact identification.

Identified October 4, 2026More mineral →

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Physical properties

Formation & geological history

If quartz-rich, it likely formed as silica crystallized from hydrothermal fluids or filled a rock fracture; its age and host environment cannot be determined from the photograph.

Uses & applications

Quartz is widely used in glass, electronics, and construction; attractive pieces may be collected or used in jewelry, though this fragment appears too small and irregular for most commercial uses.

Geological facts

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

Field identification & locations

Look for hardness sufficient to scratch glass, lack of cleavage, and a glassy fracture surface; quartz occurs worldwide in veins and igneous, metamorphic, and sedimentary rocks.