mineral

Green aventurine (likely)

Quartzite dominated by quartz (SiO₂), commonly containing fuchsite mica

AI-generated identification · may be incorrect

Translucent to opaque apple-green material with a waxy to vitreous luster; hardness about 6.5–7 Mohs, no obvious cleavage, and a granular quartz crystal structure. The image appears to show a polished or carved specimen, though exact identification is limited by the close-up view.

Identified September 5, 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 rock recrystallizes and incorporates green fuchsite or other chromium-bearing mica; most deposits are Precambrian to younger metamorphic rocks. Common sources include India, Brazil, Russia, and Tanzania.

Uses & applications

Used for beads, carvings, cabochons, ornamental objects, and inexpensive jewelry; also sold as a decorative lapidary stone.

Geological facts

Aventurine’s characteristic sparkle, called aventurescence, comes from reflective mica or hematite inclusions; this specimen appears unusually smooth and may show little visible sparkle.

Field identification & locations

Check for fine glitter, quartz-like hardness, and resistance to scratching by a steel blade; glass or dyed jade imitations may look similar. Typical value is about $5–$30 for small polished pieces, or $30–$100 for larger carvings.