mineral

Yellow Quartz (Yellow Aventurine)

Silicon Dioxide (SiO2) with inclusions

Hardness: 7 on Mohs scale; Color: Pale yellow to golden honey; Luster: Vitreous to greasy; Crystal Structure: Trigonal; Cleavage: None (Conchoidal fracture); Specific Gravity: 2.63 - 2.65.

Hardness: 7 on Mohs scale
Color: Pale yellow to golden honey
Luster: Vitreous to greasy

Identified June 26, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Pale yellow to golden honey; Luster: Vitreous to greasy; Crystal Structure: Trigonal; Cleavage: None (Conchoidal fracture); Specific Gravity: 2.63 - 2.65.

Formation & geological history

Forms primarily in hydrothermal veins and pegmatites. The yellow coloration is often due to iron inclusions or irradiation during the cooling of silica-rich magma. Commonly found in metamorphic rocks.

Uses & applications

Widely used for lapidary purposes, tumbled stones, jewelry (pendants, beads), and as a popular specimen for crystal collectors.

Geological facts

While frequently confused with Citrine, yellow aventurine is actually quartz with mica or iron inclusions that give it a distinct 'aventurescence' or internal shimmer. It has been used for centuries as a stone of prosperity.

Field identification & locations

Identify by its hardness (will scratch glass) and lack of cleavage. Look for consistent yellow coloring and slight translucency. Found globally but major deposits occur in Brazil, India, and Russia.

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