mineral

Green Aventurine (Propably a tumbled variety)

Aventurine Quartz (SiO2 with inclusions of Fuchsite)

Hardness: 7 on Mohs scale; Color: Pale to forest green; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.63 - 2.69.

Hardness: 7 on Mohs scale
Color: Pale to forest green
Luster: Vitreous to waxy

Identified March 24, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Pale to forest green; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.63 - 2.69.

Formation & geological history

Formed in metamorphic environments where quartz-rich rocks are subjected to heat and pressure, allowing the growth of chrome-rich mica (fuchsite) platelets which create the green hue and 'aventurescence'.

Uses & applications

Commonly used for lapidary work, jewelry (beads, cabochons), tumbled stones for crystal healing, and as an ornamental stone in figurines and carvings.

Geological facts

The name 'Aventurine' comes from the Italian 'a ventura', meaning 'by chance', originally referring to the accidental discovery of goldstone (glass) which mimics the mineral's natural shimmer.

Field identification & locations

Identify in the field by its characteristic shimmering effect known as 'aventurescence'. It is commonly found in India (where the majority is mined), Brazil, and Russia. Often found in stream beds as water-worn pebbles.

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