Mineral

Yellow Aventurine

Quartz (Silicon Dioxide - SiO2) with inclusions of Mica

Hardness: 7 on Mohs scale; Color: Yellow to golden-orange; Luster: Vitreous to waxy with aventurescence; Crystal structure: Hexagonal/Trigonal; Cleavage: None; Specific gravity: 2.64-2.69

Hardness: 7 on Mohs scale
Color: Yellow to golden-orange
Luster: Vitreous to waxy with aventurescence

Identified April 13, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Yellow to golden-orange; Luster: Vitreous to waxy with aventurescence; Crystal structure: Hexagonal/Trigonal; Cleavage: None; Specific gravity: 2.64-2.69

Formation & geological history

Formed through the metamorphism of quartz and secondary mineral inclusions like mica or pyrite, typically in metamorphic environments where heat and pressure recrystallize sandstones.

Uses & applications

Primarily used for ornamental purposes, jewelry (beads, cabochons), tumbled stones for collecting, and in metaphysical practices as a 'stone of self-reflection'.

Geological facts

The name 'Aventurine' comes from the Italian 'a ventura,' meaning 'by chance.' The characteristic sparkly or shimmery effect is called 'aventurescence,' caused by platy mineral inclusions within the quartz.

Field identification & locations

Identify in the field by its hardness (scratches glass) and its distinct internal shimmer under bright light. It is commonly found in India, Brazil, and parts of Russia and Tanzania.

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