mineral

Green Aventurine (Tumbled)

Silicon Dioxide (Quartz with inclusions, SiO2)

Hardness: 7 on Mohs scale. Color: Light green to pistachio green with a translucent to waxy sheen. Luster: Vitreous to waxy. Structure: Trigonal quartz matrix with microscopic mica inclusions (fuchsite). Cleavage: None (conchoidal fracture). Specific gravity: ~2.65.

Hardness: 7 on Mohs scale
Luster: Vitreous to waxy

Identified July 24, 2026More mineral →

Explore Green Aventurine (Tumbled) 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

Formed in metamorphic and igneous geological environments where quartz crystallizes along with chrome-bearing mica (fuchsite), giving it its characteristic green color and subtle shimmer (aventurescence).

Uses & applications

Widely used for lapidary arts, jewelry (beads, cabochons), crystal healing, decorative tumbled stones, and carving.

Geological facts

The name Aventurine comes from the Italian 'a ventura', meaning 'by chance', which originally referred to a type of iridescent glass discovered by chance in Venice before being applied to this similar-looking mineral.

Field identification & locations

Identify by its pale green color, quartz hardness (scratches glass), and fine crystalline texture. Commonly found in India, Brazil, Russia, and South Africa.

Other mineral specimens

See all

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Schist

Metamorphic

Sandstone with Mineral Veining or Crust

Sedimentary Sandstone (mostly SiO2 with Fe2O3 tinting)

sedimentary

Potassium Feldspar (Orthoclase)

Orthoclase (KAlSi3O8)

mineral

Gypsum (variety Selenite or Alabaster)

Calcium sulfate dihydrate (CaSO4·2H2O)

Mineral

Nephrite Jade

Nephrite

Mineral/Rock