mineral
Tumbled green aventurine (likely)
Quartz, SiO₂, with green fuchsite or other mineral inclusions
AI-generated identification · may be incorrectTranslucent to opaque green, polished and waxy-glassy; quartz has Mohs hardness 7, trigonal crystal structure, and no cleavage. The photo alone cannot confirm the identity; this could also be another green stone or imitation material.
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Physical properties
Translucent to opaque green, polished and waxy-glassy; quartz has Mohs hardness 7, trigonal crystal structure, and no cleavage. The photo alone cannot confirm the identity; this could also be another green stone or imitation material.
Formation & geological history
Aventurine forms when quartz crystallizes with reflective mineral inclusions, commonly in metamorphic or hydrothermal settings; the specimen’s geological age and source cannot be determined from the image.
Uses & applications
Used for beads, carvings, ornaments, and inexpensive jewelry or collections.
Geological facts
The glittery effect associated with aventurine, called aventurescence, comes from reflective inclusions; it is not clearly visible in this photo.
Field identification & locations
A quartz hardness scratch test and examination for tiny reflective flakes can help distinguish aventurine from softer green minerals. Green aventurine is commonly sourced from India, Brazil, and Russia.
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