mineral

Green Aventurine

Silicon Dioxide (Quartz variety) with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

Hardness: 6.5-7 on Mohs scale; Color: Green (from Fuchsite mica); Luster: Vitreous to waxy; Crystal Structure: Trigonal/Hexagonal; Cleavage: None; Specific Gravity: 2.64-2.69; Presence of 'aventurescence' (shimmer).

Hardness: 6
Color: Green (from Fuchsite mica)
Luster: Vitreous to waxy

Identified July 7, 2026More mineral →

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Physical properties

Formation & geological history

Formed in metamorphic rocks (phyllites and schists) and occasionally in igneous rocks. The shimmering effect is caused by platy inclusions of mica (Fuchsite) aligning during geological pressure and cooling.

Uses & applications

Commonly used for lapidary work, jewelry (beads, cabochons), ornamental carvings, tumbled stones for collectors, and landscaping stone.

Geological facts

Aventurine is known for its metallic shimmer, a phenomenon called 'aventurescence'. While green is the most common color, it can also be found in blue, orange, and red depending on the inclusions.

Field identification & locations

Identify by its characteristic green color and internal shimmering flakes (mica). It is commonly found in India (the primary source), Brazil, and Russia. Collectors value deep, uniform color and high aventurescence.

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