mineral

Milky quartz with mica inclusions

Quartz (SiO₂), likely with minor muscovite or biotite mica

AI-generated identification · may be incorrect

White to translucent, glassy-to-pearly patches and irregular fracture; quartz is Mohs 7, hexagonal crystal system, and has no cleavage. The image shows a coarse, intergrown specimen; exact inclusions and specific gravity cannot be confirmed visually.

Identified October 9, 2026More mineral →

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Physical properties

Formation & geological history

Likely formed as quartz-rich material in a pegmatite or quartz vein as silica-rich fluids cooled. Such formations occur across many geological ages and settings.

Uses & applications

Quartz is used in glass, electronics, abrasives, and ornamentation; attractive pieces may be collected, though this specimen appears rough and common.

Geological facts

Milky appearance results from microscopic fluid or gas inclusions that scatter light. Mica commonly forms shiny, sheet-like flakes within quartz-rich rocks.

Field identification & locations

Look for hardness (quartz scratches glass), lack of cleavage, and glassy fracture; shiny dark or silvery flakes may indicate mica. Quartz veins and pegmatites are widespread, but the locality cannot be determined from the photo.