mineral

Milky quartz

Quartz (silicon dioxide, SiO₂)

AI-generated identification · may be incorrect

Likely a rough, translucent white-to-pale-pink piece with a vitreous to dull luster and irregular fracture; quartz has Mohs hardness 7, trigonal crystal structure, no cleavage, and specific gravity about 2.65. The photo alone cannot confirm the faint pink coloration or distinguish quartz from similar pale minerals.

Identified October 1, 2026More mineral →

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Physical properties

Formation & geological history

Quartz commonly crystallizes from silica-rich fluids in veins and pegmatites, or forms as grains in many rock types; specimens can be of widely varying geological ages.

Uses & applications

Commonly collected and used for ornamental objects, carvings, and decorative stone; industrial quartz is used in glassmaking and electronics.

Geological facts

Quartz is one of Earth’s most abundant minerals and breaks with a characteristic curved, conchoidal fracture.

Field identification & locations

Look for hardness sufficient to scratch glass, lack of cleavage, and a glassy fracture surface. Quartz occurs worldwide, especially in veins and pegmatites; confirm identification with a hardness test and closer inspection.