mineral

White quartz fragment (probable)

Quartz, silicon dioxide (SiO₂)

AI-generated identification · may be incorrect

Small, white, translucent-to-opaque fragment with a vitreous luster and irregular fracture; Mohs hardness 7, no cleavage, hexagonal crystal structure, specific gravity about 2.65. The granular surface may also indicate milky quartz or a quartz-rich rock.

Identified September 14, 2026More mineral →

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Physical properties

Formation & geological history

Quartz crystallizes from silica-rich igneous, hydrothermal, and metamorphic fluids; individual specimens range from ancient to geologically recent. This fragment may have broken from vein quartz, pegmatite, or quartz-bearing rock.

Uses & applications

Used in glass, ceramics, electronics, abrasives, engineered stone, and jewelry; small rough pieces have modest collecting value.

Geological facts

Quartz is one of Earth’s most abundant minerals and is strongly resistant to weathering. White coloration commonly results from microscopic fluid inclusions or fractures.

Field identification & locations

Common worldwide, especially in quartz veins and granitic or metamorphic terrains. A steel file should not scratch it, while quartz can scratch glass; definitive identification requires hardness and possibly chemical or optical testing.