mineral

Green aventurine (likely)

Quartz variety; silicon dioxide (SiO₂), commonly colored by fuchsite mica or other inclusions

AI-generated identification · may be incorrect

Polished translucent pale-green beads with vitreous luster; quartz hardness is about 7 Mohs, hexagonal crystal structure, no prominent cleavage, and specific gravity near 2.65. The uniform color and bead polish make exact identification uncertain; it could also be dyed chalcedony or green glass imitation.

Identified August 31, 2026More mineral →

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Physical properties

Formation & geological history

Quartz-rich material forms in hydrothermal veins and metamorphic rocks, with green color typically from chromium-bearing mica. Major sources include India, Brazil, Russia, and Tanzania; geological ages vary by deposit.

Uses & applications

Used for beads, carvings, ornamental stone, and inexpensive jewelry; it has limited industrial value compared with ordinary quartz.

Geological facts

Aventurine commonly shows aventurescence—sparkling reflections from mica inclusions—though these beads appear relatively smooth and low in sparkle.

Field identification & locations

Check for natural mica glitter, hardness, cool glassy feel, and lack of bubbles; a jeweler’s refractometer or microscopic examination can distinguish it from glass and dyed materials. Common retail bracelets generally sell for about $10–$40; high-quality natural material may reach $50–$100.