mineral

Green aventurine (likely)

Quartz variety; silicon dioxide (SiO₂), commonly colored by fuchsite mica

AI-generated identification · may be incorrect

Pale green, tumbled and polished, with a waxy-to-glassy luster and faint granular inclusions; hardness about 6.5–7 Mohs, trigonal crystal structure, no prominent cleavage, and specific gravity near 2.65.

Identified August 26, 2026More mineral →

Explore Green aventurine (likely) in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Forms when quartz-rich fluids crystallize in metamorphic or hydrothermal environments, with dispersed green mica or other minerals producing the color; specimens may be Precambrian to younger depending on source.

Uses & applications

Used for beads, cabochons, carvings, decorative stone, and inexpensive polished specimens; not generally used as a structural stone.

Geological facts

Aventurine’s characteristic shimmer, called aventurescence, is caused by reflective mineral inclusions, though this piece appears relatively subdued.

Field identification & locations

Identify by its green color, quartz-like hardness, translucency, and occasional mica sparkle; common sources include India, Brazil, Russia, and Tanzania. It can be distinguished from jade by its granular texture and lower toughness.