Rock Identifier
Green Aventurine (Silicon Dioxide (SiO2) with Fuscite inclusions) — mineral
mineral

Green Aventurine

Silicon Dioxide (SiO2) with Fuscite inclusions

Hardness: 6.5-7 (Mohs scale); Color: Pale to deep green with a shimmering effect (aventurescence); Luster: Vitreous to waxy; Crystal Structure: Hexagonal (Trigonal); Gravity: 2.64–2.69

Hardness
6
Color
Pale to deep green with a shimmering effect (aventurescence)
Luster
Vitreous to waxy
Identified More mineral

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Physical properties

Hardness: 6.5-7 (Mohs scale); Color: Pale to deep green with a shimmering effect (aventurescence); Luster: Vitreous to waxy; Crystal Structure: Hexagonal (Trigonal); Gravity: 2.64–2.69

Formation & geological history

Formed in magmatic rocks and metamorphic environments. It is a variety of translucent quartz or quartzite containing platy inclusions of Fuchsite (chrome-rich mica) that align to create a glittering effect.

Uses & applications

Commonly used in jewelry (beads, cabochons), ornamental carvings, stone figurines, and as a popular mass-market pocket stone or 'healing crystal'.

Geological facts

The name 'Aventurine' comes from the Italian 'a ventura,' meaning 'by chance,' referencing the discovery of 'aventurine glass' in the 18th century, which looks similar to this natural stone.

Field identification & locations

Identify by its 'shimmer' when rotated under light, which distinguishes it from green jade or nephrite. Commonly found in India, Brazil, Russia, and Austria. In the field, look for grainy quartzite textures.