mineral
Green Aventurine
Quartz (SiO2) with fuchsite inclusions
Hardness of 7 on the Mohs scale. Color is typically green, ranging from pale to dark green. Luster is vitreous to greasy. Crystal structure is trigonal (microcrystalline quartz aggregate). Cleavage is none.
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Physical properties
Hardness of 7 on the Mohs scale. Color is typically green, ranging from pale to dark green. Luster is vitreous to greasy. Crystal structure is trigonal (microcrystalline quartz aggregate). Cleavage is none.
Formation & geological history
Forms in metamorphic environments or hydrothermal veins, often as a quartzite or quartz aggregate where tiny chrome-rich mica (fuchsite) flakes are trapped during crystallization.
Uses & applications
Used primarily in lapidary work, carved into figurines, tumbled stones, and used in jewelry and crystal healing.
Geological facts
The shimmering or glittering effect inside green aventurine is known as aventurescence, which is caused by tiny reflective mineral inclusions like fuchsite.
Field identification & locations
Easily identified by its translucent to opaque green body color combined with a metallic or glittering sheen under direct light. Found worldwide including India, Brazil, Russia, and the United States.
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