mineral

Milky quartz

Quartz (SiO₂)

AI-generated identification · may be incorrect

Mohs hardness 7; translucent white to pale yellow with a vitreous luster and no cleavage. Crystalline structure is hexagonal, though individual crystal faces are not visible here.

Identified September 22, 2026More mineral →

Explore Milky quartz in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Mohs hardness 7; translucent white to pale yellow with a vitreous luster and no cleavage. Crystalline structure is hexagonal, though individual crystal faces are not visible here.

Formation & geological history

Forms when silica-rich fluids crystallize in fractures and veins, or in igneous and metamorphic rocks. Quartz occurs in rocks of many geological ages; the specimen’s age and exact origin cannot be determined from the image.

Uses & applications

Commonly used in glassmaking, ceramics, electronics, and decorative objects; clear quartz is also cut for jewelry.

Geological facts

Quartz is one of Earth’s most abundant minerals and breaks with a curved, conchoidal fracture rather than splitting along cleavage planes.

Field identification & locations

The white, glassy appearance and irregular fracture are consistent with milky quartz. It is widespread in quartz veins and many rock types; the image does not establish a specific locality.