metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
Hardness: 7 on Mohs scale; Color: Green with shimmering inclusions; Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline); Cleavage: None; Specific Gravity: 2.64-2.69
- Hardness
- 7 on Mohs scale
- Color
- Green with shimmering inclusions
- Luster
- Vitreous to waxy
Identified More metamorphic →
Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 7 on Mohs scale; Color: Green with shimmering inclusions; Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline); Cleavage: None; Specific Gravity: 2.64-2.69
Formation & geological history
Formed as a metamorphic rock (quartzite) containing platy minerals like fuchsite mica. Formation occurs under high heat and pressure, often found in ancient metamorphic belts.
Uses & applications
Commonly used for tumbled stones, decorative ornaments, jewelry (cabochons and beads), and as a popular stone in metaphysical/holistic practices.
Geological facts
Green aventurine is known for 'aventurescence,' an optical effect caused by light reflecting off tiny inclusions within the stone. It is often referred to as the 'Stone of Opportunity.'
Field identification & locations
Identify by its characteristic green color and shimmering speckles (mica flecks). Commonly found in India, Brazil, and Russia. Used by collectors to distinguish between dyed quartz and natural aventurine.
More like this
