mineral

Quartz with chlorite inclusions

Quartz (SiO₂), likely containing green chlorite-group minerals

AI-generated identification · may be incorrect

White to translucent, vitreous luster, irregular fracture, and likely Mohs hardness 7; the green material appears as earthy or fibrous inclusions rather than distinct crystals. Crystal structure is trigonal quartz, though the specimen appears broken or partially crystalline.

Identified September 4, 2026More mineral →

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Physical properties

Formation & geological history

Quartz commonly crystallizes from silica-rich hydrothermal fluids in veins and cavities; chlorite formed during low- to moderate-temperature alteration. An exact geological age and locality cannot be determined from the photograph.

Uses & applications

Common quartz is used in glass, electronics, abrasives, and construction; attractive inclusion specimens are collected but are generally not gem-quality.

Geological facts

Green chlorite inclusions can produce moss-like patterns sometimes marketed as chlorite-in-quartz or “garden quartz,” although true garden quartz commonly contains several minerals.

Field identification & locations

Look for glassy luster, hardness sufficient to scratch ordinary glass, and green inclusions enclosed within quartz. Common occurrences include hydrothermal veins and Alpine-type cavities worldwide, especially Brazil, Madagascar, Pakistan, and the Alps.