Green Aventurine
Quartz var. Green Aventurine · Semi-Precious Gemstone
Crystal System
Trigonal, massive to granular habit with quartz microcrystalline structure
Mineral Group
Silicates
Chemical Formula
SiO2 with fuchsite or green mica inclusions
Formation Process
Hydrothermal and metamorphic processes involving quartz-rich solutions and chromium-bearing micas
About This Crystal
A translucent to opaque green stone with a shimmering, metallic glitter effect known as aventurescence, caused by tiny flat reflective mineral inclusions.
Physical Characteristics
Green body color, white streak, conchoidal fracture, lack of distinct cleavage, specific gravity of approximately 2.65, and a vitreous to greasy luster.
Optical Properties
Singly or doubly refractive with uniaxial positive optical character, displaying aventurescence due to internal reflective platelets.
Hardness & Durability
Origin Region
India, Brazil, Russia, Austria, and Tanzania
Hardness & Durability
Mohs hardness of 7, good toughness and durability, making it well-suited for various types of jewelry and carvings.
Care & Maintenance
Clean with warm soapy water and a soft brush, avoiding harsh chemicals, ultrasonic cleaners, and prolonged direct sunlight.
Rarity & Value
Common and widely available, generally affordable with value depending on color saturation and density of aventurescence.
Special Characteristics
Aventurescence (a shimmering or glistening effect caused by light reflecting off internal mineral flakes like fuchsite).
Lore & History
Often referred to as the stone of opportunity, traditionally associated with luck, abundance, and the heart chakra in crystal healing lore.