Green Aventurine
Quartz var. Aventurine · Semi-Precious Gemstone / Decorative Stone
Crystal System
Trigonal, massive habit
Mineral Group
Silicates (Tectosilicates)
Chemical Formula
SiO2 with fuchsite or mica inclusions
Formation Process
Hydrothermal and magmatic processes, forming in quartz veins and pegmatites
About This Crystal
A polished carving in the shape of a crescent moon, displaying a soft light to medium green color with a translucent to opaque appearance and a vitreous to greasy luster.
Physical Characteristics
Light green body color, white streak, conchoidal fracture, lack of distinct cleavage, specific gravity of approximately 2.65, brittle tenacity
Optical Properties
Singly refractive aggregate appearance due to microcrystalline quartz, displaying a characteristic glittering effect known as aventurescence caused by platy mineral inclusions
Hardness & Durability
Origin Region
India, Brazil, Russia, Austria, Tanzania
Hardness & Durability
Mohs hardness of 7, good durability for jewelry wear though prone to scratching softer metals or being scratched by harder stones like topaz or corundum
Care & Maintenance
Clean with warm soapy water and a soft brush, avoid harsh chemicals, prolonged direct sunlight, and ultrasonic cleaners if inclusions are heavily fractured
Rarity & Value
Common, highly affordable, valued primarily for decorative carvings and jewelry beads
Special Characteristics
Aventurescence (sparkling reflection caused by embedded mica or fuchsite platelets), often carved into decorative shapes like moons, hearts, and animals
Lore & History
Often referred to as the Stone of Opportunity, traditionally associated with the Heart Chakra and believed by practitioners to attract luck, abundance, and emotional tranquility