mineral
Tumbled Mixed Gemstones (Quartz and Rutile)
Silicon Dioxide (SiO2) with various inclusions
AI-generated identification · may be incorrectHardness: 7 (Mohs scale); Color: Clear, green, smoky, and reddish; Luster: Vitreous; Crystal structure: Trigonal; Cleavage: None; Specific Gravity: 2.65
- Hardness
- 7 (Mohs scale)
- Color
- Clear, green, smoky, and reddish
- Luster
- Vitreous
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Physical properties
Hardness: 7 (Mohs scale); Color: Clear, green, smoky, and reddish; Luster: Vitreous; Crystal structure: Trigonal; Cleavage: None; Specific Gravity: 2.65
Formation & geological history
Formed in hydrothermal veins and pegmatites through the slow cooling of silica-rich fluids. These specimens likely range from millions to hundreds of millions of years in age.
Uses & applications
Primarily used for decorative purposes, meditation practices, metaphysical healing, and small jewelry components like wire-wrapped pendants.
Geological facts
Many of these pieces exhibit 'rutilated' or 'tourmalinated' effects, where needle-like inclusions of other minerals are trapped inside the quartz during growth. Tumble finishing uses abrasive grit to simulate natural river erosion.
Field identification & locations
Identify by their glassy surface and extreme hardness (cannot be scratched by steel). These tumbled assortments are commonly found in gift shops and gem mines globally.
