mineral

Likely quartz-rich rock fragment

Quartz (silicon dioxide, SiO₂), possibly milky quartz or a quartz-bearing stone

AI-generated identification · may be incorrect

Small elongated, pale white specimen with a dull-to-slightly vitreous luster; quartz has Mohs hardness 7, no cleavage, conchoidal fracture, and specific gravity about 2.65. The image resolution prevents reliable identification of crystal form or texture.

Identified August 23, 2026More mineral →

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Physical properties

Formation & geological history

Quartz forms in igneous, metamorphic, and hydrothermal environments, commonly crystallizing from silica-rich fluids or occurring as grains in many rocks. Its age could range from recent vein growth to billions of years.

Uses & applications

Common quartz is used in glass, ceramics, engineered stone, electronics, abrasives, and mineral collections; attractive transparent varieties are used as gemstones.

Geological facts

Milky or white quartz is colored by microscopic fluid inclusions, fractures, or impurities. It is among Earth’s most abundant minerals.

Field identification & locations

Test for hardness by seeing whether it scratches ordinary glass, and inspect for a glassy luster and absence of cleavage; avoid destructive testing if valuable. Common worldwide, especially in quartz veins and granite-rich terrains.