mineral
Green aventurine bead bracelet
Quartz (SiO₂), commonly green quartzite/aventurine colored by fuchsite mica or other inclusions
AI-generated identification · may be incorrectTranslucent blue-green, vitreous-to-waxy luster, typically Mohs hardness 6.5–7, granular quartz crystal structure, with no obvious cleavage; beads are polished and drilled. The uniform color and rounded beads indicate a processed specimen.
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Physical properties
Translucent blue-green, vitreous-to-waxy luster, typically Mohs hardness 6.5–7, granular quartz crystal structure, with no obvious cleavage; beads are polished and drilled. The uniform color and rounded beads indicate a processed specimen.
Formation & geological history
Quartz-rich rock formed by metamorphic or hydrothermal processes, with green coloration from chromium-bearing fuchsite or other minerals; deposits are especially associated with India, Brazil, Russia, and Tanzania. Geological ages vary by locality.
Uses & applications
Used for ornamental beads, carvings, cabochons, and inexpensive jewelry; it has limited industrial value compared with ordinary quartzite.
Geological facts
Aventurine’s characteristic aventurescence is caused by reflective mineral inclusions, though this bracelet appears only weakly aventurescent and may be dyed chalcedony, quartzite, or glass imitation.
Field identification & locations
Check for tiny reflective mica flashes, natural color variation, quartz-like hardness, and lack of bubbles; glass commonly shows bubbles and scratches more easily. Common sources include India and Brazil.
