mineral

Green aventurine quartz

Quartz (SiO₂) with fuchsite or other mica inclusions

AI-generated identification · may be incorrect

Typically pale to medium green, translucent to opaque, with a vitreous-to-waxy luster and subtle aventurescence; hardness about 7 Mohs, hexagonal crystal structure, no cleavage, and specific gravity near 2.65. The rounded, polished appearance suggests a tumbled specimen.

Identified August 27, 2026More mineral →

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Physical properties

Formation & geological history

Forms when silica-rich fluids crystallize quartz containing dispersed green mica, commonly in metamorphic rocks; deposits are generally Precambrian to younger, depending on locality. Common sources include India, Brazil, Russia, and Tanzania.

Uses & applications

Used for beads, cabochons, carvings, ornamental objects, and inexpensive gemstone jewelry; occasionally sold as decorative rough or tumbled stone.

Geological facts

Its glittering effect is called aventurescence and results from light reflecting off platy inclusions. The image’s green color and translucent texture are consistent with aventurine, though visual identification alone is not definitive.

Field identification & locations

Look for green color, quartz-like hardness, translucency, and mica sparkle; it should scratch glass but not be scratched by a steel blade. Commonly found in quartz-rich metamorphic or hydrothermal settings.