mineral
Yellow Quartz (Citrine or Quartzite Pebble)
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 (Mohs scale); Color: Pale yellow to honey gold; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None; Specific gravity: 2.65.
- Hardness
- 7 (Mohs scale)
- Color
- Pale yellow to honey gold
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 7 (Mohs scale); Color: Pale yellow to honey gold; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None; Specific gravity: 2.65.
Formation & geological history
Formed through hydrothermal processes in igneous rocks or as a result of water erosion smoothing silica-rich stones. This specimen appears to be a river-worn pebble, potentially millions of years old.
Uses & applications
Used in gemstone jewelry, metaphysical practices, and industrial glass production. Tumbled specimens are popular for decoration.
Geological facts
Naturally occurring yellow citrine is rare; most commercial citrine is actually heat-treated amethyst. This specimen's translucent, rounded appearance is typical of 'river glass' or quartz pebbles.
Field identification & locations
Identify by its ability to scratch glass and its rounded, water-worn texture. Commonly found in riverbeds, beaches, and alluvial deposits worldwide.
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Epidote
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Granite (Phaneritic intrusive igneous rock)
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