mineral

Polished green aventurine quartz

Quartz, silicon dioxide (SiO₂), containing reflective mica or chlorite inclusions

AI-generated identification · may be incorrect

Typically pale green, translucent, and vitreous with subtle aventurescence; quartz hardness is 7 Mohs, with no cleavage and conchoidal fracture. The rounded, polished form obscures its natural crystal structure and specific gravity is about 2.65.

Identified August 16, 2026More mineral →

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Physical properties

Formation & geological history

Forms in silica-rich hydrothermal veins and metamorphic rocks when quartz crystallizes around mica or chlorite inclusions; specimens are generally geologically ancient, commonly Precambrian to Paleozoic depending on source.

Uses & applications

Used for beads, cabochons, carvings, ornaments, and inexpensive jewelry; polished palm stones are popular collector and decorative items.

Geological facts

Aventurine’s shimmer, called aventurescence, comes from light reflecting off aligned mineral platelets; stronger glitter generally increases desirability.

Field identification & locations

Identify it by its green translucent quartz body, hardness, and occasional sparkly inclusions; common sources include India, Brazil, Russia, and Tanzania. This specimen may also be green quartz or jade-like material, but visual identification alone is not definitive.