mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Hardness: 6.5-7 (Mohs scale); Color: Pale to deep green; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (Conchoidal fracture); Specific gravity: 2.64-2.69
- Hardness
- 6
- Color
- Pale to deep green
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 6.5-7 (Mohs scale); Color: Pale to deep green; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (Conchoidal fracture); Specific gravity: 2.64-2.69
Formation & geological history
Formed in metamorphic environments where quartz-rich sediments or rocks are subjected to high pressure and temperature, causing recrystallization. Its green color is typically caused by inclusions of green chrome-mica known as fuchsite.
Uses & applications
Extensively used for decorative items, figurines, tumbled stones, jewelry beads, and as a popular stone for crystal healing and metaphysical practices.
Geological facts
Aventurine is known for its 'aventurescence', a shimmering or glinting effect caused by platy mineral inclusions. While usually green, it can also be found in blue, red, orange, and peach varieties.
Field identification & locations
Commonly found in India, Brazil, Russia, and Austria. Identify in the field by its distinct specked green appearance and ability to scratch glass. For collectors, look for high crystalline translucency and vibrant green saturation.
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