mineral

Green aventurine bead bracelet

Quartz (SiO₂), commonly green quartzite/aventurine colored by fuchsite mica or other inclusions

AI-generated identification · may be incorrect

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.

Identified August 31, 2026More mineral →

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Physical properties

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.