mineral
Green aventurine (likely)
Quartz, SiO₂, with green fuchsite inclusions
AI-generated identification · may be incorrectOpaque to translucent green, with a subdued vitreous-to-waxy luster and irregular fracture; quartz has Mohs hardness 7 and trigonal crystal structure. The small, rounded specimen’s identity is uncertain from the image alone.
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Physical properties
Opaque to translucent green, with a subdued vitreous-to-waxy luster and irregular fracture; quartz has Mohs hardness 7 and trigonal crystal structure. The small, rounded specimen’s identity is uncertain from the image alone.
Formation & geological history
Forms when silica-rich fluids crystallize quartz containing fine green mica inclusions, commonly during metamorphic processes. Its precise age and source cannot be determined visually.
Uses & applications
Used for carved ornaments, beads, jewelry, and decorative objects; this rough fragment is mainly a collector specimen.
Geological facts
Aventurine’s shimmering effect, called aventurescence, comes from reflective mineral inclusions; it is not clearly visible here.
Field identification & locations
Green color and quartz-like appearance fit aventurine, but jade, serpentine, or glass can look similar. Common sources include India, Brazil, and Russia; hardness and close inspection can help distinguish it.
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