mineral
Yellow Aventurine
Quartz with inclusion minerals (SiO2)
Hardness of 7 on the Mohs scale, yellow to golden-brown color, vitreous to greasy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, yellow to golden-brown color, vitreous to greasy luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
Formation & geological history
Forms in metamorphic and igneous environments, particularly within quartz veins, pegmatites, and quartzites where mineral inclusions like pyrite, goethite, or mica create the shimmering yellow color.
Uses & applications
Used primarily for making tumbled stones, beads, carved figurines, decorative items, and jewelry.
Geological facts
The shimmering effect, known as aventurescence, is caused by tiny reflective plate-like mineral inclusions suspended within the quartz matrix.
Field identification & locations
Can be identified by its distinctive yellow hue combined with a subtle metallic or glittery sheen under light; commonly sourced from India, Brazil, and Russia.
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