Green Aventurine
Quartz var. Aventurine · Semi-Precious Gemstone
Crystal System
Trigonal, cut and polished into a hexagonal terminated prism habit
Mineral Group
Silicates, Tectosilicate subgroup
Chemical Formula
SiO2 with fuchsite inclusions
Formation Process
Metamorphic formation where quartz aggregates undergo regional metamorphism, incorporating platy mineral inclusions like green fuchsite mica
About This Crystal
A polished, hexagonal pointed pendant made of light to medium green quartz. It exhibits a translucent to semi-translucent appearance with a vitreous to waxy luster, displaying characteristic subtle shimmering inclusions (aventurescence)
Physical Characteristics
Light green body color, white streak, no distinct cleavage planes, conchoidal fracture, specific gravity around 2.65, brittle tenacity, inert to magnetism and UV fluorescence
Optical Properties
Uniaxial positive optical character, refractive index of 1.544 to 1.553, double refraction (birefringence of 0.009), exhibits mild aventurescence due to tiny reflective mineral flakes
Hardness & Durability
Origin Region
India, Brazil, Russia, and Austria; typically found in metamorphic and hydrothermal environments
Hardness & Durability
Mohs hardness of 7, good toughness making it durable for daily jewelry wear, resistant to scratching by most common materials except quartz-level or harder abrasives
Care & Maintenance
Clean with warm soapy water and a soft brush, avoid harsh chemical cleaners and prolonged direct sunlight to maintain color integrity, store separately from harder stones to avoid surface scratching
Rarity & Value
Common availability, with value determined by the evenness of green coloration, density and sparkle of the internal mica flakes, and overall craftsmanship; typically very affordable
Special Characteristics
Aventurescence, which is a glittering metallic effect caused by light reflecting off tiny, evenly distributed plate-like mineral inclusions trapped inside the quartz matrix
Lore & History
Historically used as an amulet for luck, wealth, and opportunity. In modern crystal healing, Green Aventurine is traditionally associated with the Heart Chakra, symbolizing emotional tranquility, optimism, and prosperity, though these remain cultural traditions rather than scientific claims