
mineral
Green Aventurine
Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions
Hardness of 7 on the Mohs scale, translucent to opaque green color with a shimmering or glittering effect known as aventurescence, vitreous to greasy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, translucent to opaque green color with a shimmering or glittering effect known as aventurescence, vitreous to greasy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
Formation & geological history
Formed through the hydrothermal process in metamorphic and igneous environments, primarily as a quartzite or within pegmatites where silica-rich solutions precipitate quartz alongside tiny plate-like mineral inclusions like fuchsite.
Uses & applications
Widely used in ornamental carvings, polished spheres, tumbled stones, jewelry, and beadwork. It is also popular in metaphysical practices and crystal collecting.
Geological facts
The shimmering metallic appearance of aventurine is called aventurescence, which is caused by tiny reflective platelets of fuchsite (a chromium-rich variety of muscovite mica) trapped inside the quartz matrix during formation.
Field identification & locations
Can be identified by its characteristic green color combined with the distinctive metallic sparkle (aventurescence) under direct light. It is commonly sourced from India, Brazil, Russia, and the United States.
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