mineral

Quartz crystal fragment (likely milky/inclusion-rich quartz)

Quartz, silicon dioxide (SiO₂)

AI-generated identification · may be incorrect

Typically hardness 7 Mohs, white to gray, vitreous luster, and a hexagonal crystal structure; it has indistinct cleavage and conchoidal fracture. The specimen appears to be a small translucent, gray-white crystal fragment, though the image is insufficient for definitive identification.

Identified August 15, 2026More mineral →

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Physical properties

Formation & geological history

Quartz commonly crystallizes from silica-rich hydrothermal fluids, cavities in igneous rocks, and metamorphic veins over broad geological timescales. Its exact age and locality cannot be determined visually.

Uses & applications

Used in glass, ceramics, electronics, abrasives, and construction aggregate; attractive crystals are collected or used decoratively. This small fragment has minimal commercial value.

Geological facts

Quartz is one of Earth’s most abundant minerals and is piezoelectric, producing an electrical charge under pressure. The visible pointed form may represent a broken crystal termination.

Field identification & locations

Look for glassy luster, hardness sufficient to scratch ordinary glass, and conchoidal fracture; avoid confusing it with glass or calcite. Common worldwide, especially in quartz veins, geodes, and granite-related environments.