mineral

Mixed Quartz and Aventurine Chips

Silicon Dioxide (SiO2) with various inclusions

AI-generated identification · may be incorrect

Hardness: 7 (Mohs scale); Color: Green, smoky, clear, and reddish-brown; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Hardness: 7 (Mohs scale)
Color: Green, smoky, clear, and reddish-brown
Luster: Vitreous to waxy

Identified July 18, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs scale); Color: Green, smoky, clear, and reddish-brown; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Formation & geological history

Formed in igneous or metamorphic environments through hydrothermal processes. Most specimens of this type originate from Brazil, India, or Russia in pegmatites and hydrothermal veins.

Uses & applications

Used primarily for costume jewelry, beadwork, healing crystal practices, and decorative crafts.

Geological facts

Aventurine is known for its 'aventurescence,' a shimmering effect caused by tiny inclusions of mica or hematite. Quartz is one of the most abundant and varied minerals on Earth.

Field identification & locations

Identify by its hardness (scratches glass), waxy luster when tumbled, and the presence of internal inclusions. Often found in riverbeds or mountain outcrops in crystalline form.