mineral

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Hardness: 6.5-7 (Mohs), Color: Light to dark green, Luster: Vitreous/Waxy, Crystal Structure: Trigonal (microcrystalline), Cleavage: None, Specific Gravity: 2.64-2.69. Known for aventurescence (shimmering effect).

Hardness: 6

Identified April 6, 2026More mineral →

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Physical properties

Formation & geological history

Formed in metamorphic rocks and magmatic hydrothermal veins. The characteristic green color comes from inclusions of green fuchsite mica within the quartz matrix.

Uses & applications

Used extensively for carvings, sculptures, cabochons for jewelry, and as a popular grounding stone in gemstone collecting and alternative healing practices.

Geological facts

The name 'Aventurine' comes from the Italian 'a ventura', meaning 'by chance', referring to the accidental discovery of aventurine glass (goldstone) in the 18th century, which looks similar.

Field identification & locations

Identified by its grainy, sugary texture and shimmering internal reflections. Commonly found in India, Brazil, and Russia. It is often confused with jade but is harder and has a 'sparkling' appearance.

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