Green Aventurine Quartz
Quartz var. Aventurine · Semi-Precious Gemstone and Mineral Specimen
Crystal System
Trigonal, massive or tumbled habit
Mineral Group
Silicates - Tectosilicates
Chemical Formula
SiO2 with fuchsite or mica inclusions
Formation Process
Hydrothermal and metamorphic formation processes, incorporating microscopic mineral flakes during crystal growth
About This Crystal
Tumbled, smooth oval-shaped gemstone displaying a pale translucent green body with a distinct brownish-orange patch showing concentric or swirling natural inclusions and banding patterns
Physical Characteristics
Green and brownish-orange body color, white streak, conchoidal fracture, lack of distinct cleavage, specific gravity of approximately 2.65, vitreous to waxy luster
Optical Properties
Singly refractive with uniaxial positive optical character, sometimes showing a subtle glittering effect called aventurescence due to internal reflective mineral platelets
Hardness & Durability
Origin Region
India, Brazil, Russia, and Austria, typically found in metamorphic or pegmatitic environments
Hardness & Durability
Mohs hardness of 7, good toughness, durable and suitable for everyday jewelry wear although care should be taken against harder abrasive minerals
Care & Maintenance
Clean with warm soapy water and a soft cloth, avoid harsh chemicals or prolonged exposure to direct sunlight to prevent any fading of secondary inclusions
Rarity & Value
Common and widely accessible, value is generally low to moderate depending on color saturation, presence of striking inclusions, and size
Special Characteristics
Inclusions of mica or fuchsite creating subtle aventurescence, along with distinct iron-oxide staining creating contrasting earthy brown patches
Lore & History
Historically used as a lucky talisman and often called the stone of opportunity, traditionally associated with the heart chakra in modern crystal healing traditions