mineral

Yellow Aventurine

Silicon Dioxide with inclusions (SiO2 + Muscovite/Fuchsite)

Hardness: 6.5-7 (Mohs scale); Color: Yellow to golden orange; Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline); Cleavage: None; Specific Gravity: 2.63 - 2.65

Hardness: 6
Color: Yellow to golden orange
Luster: Vitreous to waxy

Identified April 4, 2026More mineral →

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Physical properties

Hardness: 6.5-7 (Mohs scale); Color: Yellow to golden orange; Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline); Cleavage: None; Specific Gravity: 2.63 - 2.65

Formation & geological history

Formed as a sedimentary or metamorphic quartzite. The yellow color and aventurescence (shimmer) are typically caused by inclusions of mica or iron-bearing minerals like goethite or muscovite.

Uses & applications

Commonly used for tumbled stones, decorative ornaments, jewelry (beads and cabochons), and in spiritual or metaphysical practices.

Geological facts

The name 'Aventurine' comes from the Italian word 'a ventura,' meaning 'by chance,' originally referring to the accidental discovery of aventurine glass (goldstone) in the 18th century.

Field identification & locations

Identify by its characteristic 'aventurescence' (a metallic glittery effect seen when rotated under light). Commonly found in India, Brazil, Russia, and Tanzania. Look for a grainy, quartzite texture under magnification.

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