mineral

Green Aventurine

SiO2 (Silicon Dioxide with inclusions of Fuchsite)

Hardness: 6.5-7 (Mohs scale), Color: Pale to dark green, Luster: Vitreous to waxy, Crystal Structure: Trigonal (quartz-based), Specific Gravity: 2.64-2.69

Hardness: 6

Identified May 19, 2026More mineral →

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Physical properties

Hardness: 6.5-7 (Mohs scale), Color: Pale to dark green, Luster: Vitreous to waxy, Crystal Structure: Trigonal (quartz-based), Specific Gravity: 2.64-2.69

Formation & geological history

Formed primarily in metamorphic environments such as phyllites or schists where quartz and mica combine under high pressure. Its distinctive green color comes from inclusions of chromium-rich green mica known as fuchsite.

Uses & applications

Commonly used in jewelry (beads, cabochons), small ornamental carvings (like the cat shown), tumbled stones for crystal collections, and sometimes in landscaping.

Geological facts

Aventurine is known for 'aventurescence', a shimmering or glistening effect caused by platy mineral inclusions within the quartz. The name comes from the Italian 'a ventura', meaning 'by chance'.

Field identification & locations

Identify by its characteristic pale green, slightly translucent appearance with subtle internal sparkles. It is commonly found in India, Brazil, and Russia. Unlike Jade, it often shows these tiny micaceous reflections under light.

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