mineral
Mixed Quartz and Aventurine Chips
Silicon Dioxide (SiO2) with various inclusions
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
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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.
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