mineral
Green aventurine beads
Aventurine quartz, SiO₂, colored green by fuchsite or other inclusions
AI-generated identification · may be incorrectLikely polished, rounded beads; quartz has Mohs hardness 7, vitreous luster, and a trigonal crystal structure. The beads appear opaque to translucent green; beadwork alone cannot confirm the material.
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Physical properties
Likely polished, rounded beads; quartz has Mohs hardness 7, vitreous luster, and a trigonal crystal structure. The beads appear opaque to translucent green; beadwork alone cannot confirm the material.
Formation & geological history
Aventurine forms when quartz crystallizes with fine mineral inclusions, commonly in metamorphic rocks. Its age depends on the deposit; green coloration often comes from chromium-bearing mica such as fuchsite.
Uses & applications
Used for beads, cabochons, carvings, and decorative objects; quartz-rich aventurine is also collected as an ornamental stone.
Geological facts
Aventurine’s characteristic glitter, called aventurescence, comes from reflective plate-like inclusions; it is not clearly visible in this photo.
Field identification & locations
The smooth green beads are consistent with aventurine, but dyed agate or glass can look similar; check for natural glitter and avoid inferring identity from color alone. Found in deposits including India, Brazil, and Russia.
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