mineral

Milky quartz

Quartz, silicon dioxide (SiO₂)

AI-generated identification · may be incorrect

Likely a rough, pale pink-white quartz fragment with a vitreous to dull luster and irregular fracture. Quartz has Mohs hardness 7, a trigonal crystal structure, no cleavage, and specific gravity about 2.65; the image alone cannot confirm the identification or color cause.

Identified October 10, 2026More mineral →

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Physical properties

Formation & geological history

Quartz forms in many settings, including cooling silica-rich melts and mineral-filled fractures in Earth’s crust. It occurs in rocks of many ages, from ancient crust to modern veins.

Uses & applications

Commonly used for glass and industrial silica; attractive pieces may be collected or fashioned into beads and ornaments.

Geological facts

Quartz is one of Earth’s most abundant minerals and produces a conchoidal, curved fracture when struck.

Field identification & locations

Look for hardness sufficient to scratch glass, lack of cleavage, and a glassy fracture; common worldwide in veins, pegmatites, and many rock types. The small rough specimen’s identity is tentative from the photo.