mineral

Green aventurine bead necklace

Aventurine quartz, predominantly SiO₂ with green color commonly from fuchsite mica inclusions

AI-generated identification · may be incorrect

Polished, opaque-to-translucent green spherical beads with a vitreous luster; quartz hardness 7 Mohs, trigonal crystal structure, no distinct cleavage. Bead appearance alone cannot confirm the material; green glass or dyed stone can look similar.

Identified October 5, 2026More mineral →

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Physical properties

Formation & geological history

Aventurine forms when quartz crystallizes with tiny mineral inclusions, often in silica-rich veins or metamorphic rocks. Its geological age and source cannot be determined from the image.

Uses & applications

Used for beads, cabochons, and decorative objects; also sold as a relatively affordable ornamental stone.

Geological facts

Natural aventurine’s characteristic subtle sparkle, called aventurescence, comes from reflective inclusions; it may be difficult to see in polished beads.

Field identification & locations

The image shows uniformly shaped, polished green beads, consistent with aventurine but not diagnostic. Aventurine occurs in places including India, Brazil, and Russia; gemological testing is needed to distinguish it from imitations.