mineral
Green aventurine (likely)
Quartz (SiO₂), with green fuchsite inclusions; the pictured piece is a polished, drilled pendant
AI-generated identification · may be incorrectTypically Mohs 6.5–7, green with a vitreous to subtly glittery sheen, and no distinct cleavage; quartz has a trigonal crystal structure. The opaque, smooth appearance here limits visual confirmation.
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Physical properties
Typically Mohs 6.5–7, green with a vitreous to subtly glittery sheen, and no distinct cleavage; quartz has a trigonal crystal structure. The opaque, smooth appearance here limits visual confirmation.
Formation & geological history
Forms when silica-rich fluids crystallize as quartz with disseminated green mica, commonly in metamorphic environments. Its geological age cannot be determined from the image.
Uses & applications
Used for beads, pendants, carvings, and ornamental objects; quartz is also widely used in glass, electronics, and construction.
Geological facts
Aventurine’s characteristic sparkle, called aventurescence, comes from reflective mineral inclusions; green varieties commonly contain fuchsite mica.
Field identification & locations
Green color and possible fine glitter are consistent with aventurine, but jade, dyed quartz, or another green stone cannot be excluded from a photo. Aventurine occurs in India, Brazil, Russia, and elsewhere; a small pendant commonly sells for about $5–$30 USD.
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