mineral

Green aventurine pebble

Quartz (SiO₂) with fuchsite mica inclusions

AI-generated identification · may be incorrect

Typically pale to medium green with a waxy-to-glassy luster and subtle sparkle; Mohs hardness 6.5–7, no prominent cleavage, and a trigonal crystal structure. The rounded shape indicates tumbling or natural water abrasion; the small cavity may be a natural vug or surface wear.

Identified August 16, 2026More mineral →

Explore Green aventurine pebble 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

Aventurine forms when quartz-rich rock crystallizes with disseminated green fuchsite mica, commonly in metamorphic or hydrothermal settings. The specimen is likely a modern tumbled fragment rather than an intact natural crystal; its exact geological age cannot be determined from the image.

Uses & applications

Used for beads, carvings, cabochons, ornaments, and inexpensive polished specimens; occasionally used decoratively as aggregate or facing stone.

Geological facts

Green aventurine’s color is mainly caused by chromium-bearing fuchsite, while aventurescence comes from reflective mica flakes. It is commonly confused with dyed quartz or green glass.

Field identification & locations

Identify it by its hardness, cool quartz feel, translucent green body, and mica-like glitter under strong light; glass is usually softer or shows bubbles. Common sources include India, Brazil, Russia, and Tanzania.