metamorphic
Aventurine (Green)
Silicon Dioxide (Quartz with inclusions of Fuchsite)
Hardness: 6.5-7 (Mohs scale), Color: Green with shimmering spots, Luster: Vitreous to waxy, Crystal structure: Trigonal/Microcrystalline, Cleavage: None, Specific gravity: 2.64-2.69
- Hardness
- 6
Identified More metamorphic →
Explore Aventurine (Green) in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6.5-7 (Mohs scale), Color: Green with shimmering spots, Luster: Vitreous to waxy, Crystal structure: Trigonal/Microcrystalline, Cleavage: None, Specific gravity: 2.64-2.69
Formation & geological history
Formed through the regional metamorphism of sandstone into quartzite, where high pressure and heat allow mica minerals to recrystallize and align, creating the shimmering effect.
Uses & applications
Primarily used in jewelry (beads, cabochons), ornamental carvings, landscaping, and metaphysical collecting.
Geological facts
The shimmering effect seen in Aventurine is called 'aventurescence,' caused by platy inclusions of green fuchsite mica. It was named after 'a ventura' (by chance), a Venetian glass discovery in the 1700s.
Field identification & locations
Identify in the field by its distinct mica glitter, grainy texture compared to jade, and inability to be scratched by a steel knife. Found commonly in Brazil, India, and Russia.
More like this
