
mineral
Pale green tumbled stone, possibly green aventurine
Likely quartz-rich aventurine (SiO₂ with fuchsite inclusions); exact identification is uncertain from the image
AI-generated identification · may be incorrectOpaque, pale green, smooth and rounded with a subdued luster. If aventurine, hardness is about 6.5–7 Mohs and its crystal structure is trigonal; no clear cleavage, with uneven fracture and specific gravity near 2.6.
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Physical properties
Opaque, pale green, smooth and rounded with a subdued luster. If aventurine, hardness is about 6.5–7 Mohs and its crystal structure is trigonal; no clear cleavage, with uneven fracture and specific gravity near 2.6.
Formation & geological history
Aventurine forms when quartz crystallizes with reflective mica or other mineral inclusions, commonly during metamorphic or hydrothermal processes; its age depends on the deposit.
Uses & applications
Tumbled aventurine is used for jewelry, carvings, and decorative collections; quartz is also widely used in glass and electronics.
Geological facts
Green aventurine’s characteristic sparkle, called aventurescence, comes from platy mineral inclusions; it is not apparent in this image.
Field identification & locations
The smooth shape suggests a tumbled specimen, but color alone cannot confirm aventurine. Check for glittering inclusions and a hardness near 7; green calcite or other stones may look similar.
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