metamorphic
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite mica)
Hardness: 7 (Mohs scale), Color: Pale to dark green, Luster: Vitreous to waxy, Crystal structure: Hexagonal (trigonal), Cleavage: None, Specific Gravity: 2.64-2.69
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Physical properties
Hardness: 7 (Mohs scale), Color: Pale to dark green, Luster: Vitreous to waxy, Crystal structure: Hexagonal (trigonal), Cleavage: None, Specific Gravity: 2.64-2.69
Formation & geological history
Formed through the metamorphic process where heat and pressure fuse quartz with other minerals. The green color is specifically caused by inclusions of chromium-rich fuchsite mica.
Uses & applications
Used primarily for jewelry (beads, cabochons), ornamental carvings, landscaping stones, and as a popular meditation and 'healing' crystal in the metaphysical community.
Geological facts
Aventurine is known for its 'aventurecence,' a shimmering effect caused by the reflection of light from flat mineral inclusions within the quartz. It is often mistaken for jade due to its green color.
Field identification & locations
Identify in the field by its distinct speckly shimmer (if polished or wet) and its higher hardness compared to minerals like serpentine or soapstone. Commonly found in India, Brazil, and Russia.
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