mineral

Aventurine

Silicon Dioxide (SiO2) with inclusions

Hardness: 6.5-7.0 (Mohs scale), Color: Green (due to Fuchsite), Luster: Vitreous to waxy, Crystal Structure: Hexagonal (trigonal), Cleavage: None/Conchoidal fracture, Specific Gravity: 2.64-2.69

Hardness: 6

Identified May 29, 2026More mineral →

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Physical properties

Hardness: 6.5-7.0 (Mohs scale), Color: Green (due to Fuchsite), Luster: Vitreous to waxy, Crystal Structure: Hexagonal (trigonal), Cleavage: None/Conchoidal fracture, Specific Gravity: 2.64-2.69

Formation & geological history

Formed in metamorphic rocks and as a secondary mineral in igneous deposits; specifically quartz that contains platey inclusions. Formed mainly through hydrothermal processes or during regional metamorphism.

Uses & applications

Used primarily in jewelry, ornamental carvings, chakra healing, landscaping, and as a decorative stone in construction.

Geological facts

It is often called the 'Stone of Opportunity'. The 'aventurescence' effect is caused by tiny inclusions of green mica (fuchsite) that shimmer when light hits the stone. It has been used in figurines and vases for centuries.

Field identification & locations

Identify by its characteristic green color and shimmering 'aventurescence'. Found commonly in India, Brazil, and Russia. Collectors should look for a uniform green color with visible but not overpowering sparkling inclusions.