Rock Identifier
Green Aventurine (Quartz with fuchsite inclusions (SiO2)) — mineral
mineral

Green Aventurine

Quartz with fuchsite inclusions (SiO2)

Hardness: 7 on the Mohs scale. Color: Green (ranging from pale to dark green). Luster: Vitreous to greasy, with a characteristic shimmering or glistening effect (aventurescence) caused by mineral inclusions. Crystal structure: Trigonal. Cleavage: None. Specific gravity: 2.65.

Hardness
7 on the Mohs scale
Color
Green (ranging from pale to dark green)
Identified More mineral
Explore Green Aventurine in the encyclopedia →

Identify your own rocks.

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

Physical properties

Hardness: 7 on the Mohs scale. Color: Green (ranging from pale to dark green). Luster: Vitreous to greasy, with a characteristic shimmering or glistening effect (aventurescence) caused by mineral inclusions. Crystal structure: Trigonal. Cleavage: None. Specific gravity: 2.65.

Formation & geological history

Forms primarily in metamorphic environments, particularly in quartz veins and pegmatites, where quartz crystallizes alongside chromium-rich micas like fuchsite, imparting the green color.

Uses & applications

Widely used in jewelry, decorative carvings, tumbling, and crystal healing practices.

Geological facts

The shimmering effect unique to aventurine is known as 'aventurescence' and gave the stone its name, derived from the Italian 'a avventura' meaning 'by chance'.

Field identification & locations

Can be identified in the field by its distinct green color combined with a glistening metallic sparkle when rotated in the light. Commonly found in India, Brazil, Russia, and the United States.