mineral

Tumbled milky quartz

Quartz, SiO₂

AI-generated identification · may be incorrect

Mohs hardness 7; white to translucent with pale peach staining, vitreous luster, and hexagonal crystal structure. Massive quartz has no cleavage and breaks with a conchoidal fracture.

Identified October 13, 2026More mineral →

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Physical properties

Mohs hardness 7; white to translucent with pale peach staining, vitreous luster, and hexagonal crystal structure. Massive quartz has no cleavage and breaks with a conchoidal fracture.

Formation & geological history

Quartz commonly forms as silica-rich fluids crystallize in veins and cavities, or in igneous and metamorphic rocks. The specimen is polished, so its geological age and original setting cannot be determined from the image.

Uses & applications

Used in jewelry, carvings, glassmaking, electronics, and as a durable decorative stone.

Geological facts

Quartz is one of Earth’s most abundant minerals; iron-oxide inclusions or surface staining may produce the peach color.

Field identification & locations

Likely quartz based on its translucent white appearance and hardness; a scratch test or glass-scratch test can help distinguish it. Quartz occurs worldwide, especially in veins and pegmatites.