mineral

Milky quartz

Quartz (silicon dioxide, SiO₂)

AI-generated identification · may be incorrect

Hardness 7 Mohs; white to translucent with a vitreous-to-waxy luster, hexagonal crystal structure, and no cleavage. The specimen appears to be a rough, fractured quartz piece.

Identified September 26, 2026More mineral →

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Physical properties

Hardness 7 Mohs; white to translucent with a vitreous-to-waxy luster, hexagonal crystal structure, and no cleavage. The specimen appears to be a rough, fractured quartz piece.

Formation & geological history

Quartz commonly crystallizes from silica-rich fluids in veins and cavities within many rock types; its age depends on the host geology and cannot be determined from the image.

Uses & applications

Used in glass and ceramics, electronics, and ornamental objects; clear, attractive pieces may be cut or polished for jewelry.

Geological facts

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

Field identification & locations

Identify by its glassy appearance, lack of cleavage, and ability to scratch ordinary glass; it occurs worldwide, especially in veins and pegmatites. The image alone cannot confirm composition definitively.