mineral
Yellow Jasper
Silicon dioxide, SiO2
AI-generated identification · may be incorrectHardness: 6.5-7 on Mohs scale. Color: Mustard yellow to brownish-yellow. Luster: Vitreous to dull. Crystal structure: Cryptocrystalline. Cleavage: None. Specific gravity: 2.58-2.91
- Hardness
- 6
- Color
- Mustard yellow to brownish-yellow
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6.5-7 on Mohs scale. Color: Mustard yellow to brownish-yellow. Luster: Vitreous to dull. Crystal structure: Cryptocrystalline. Cleavage: None. Specific gravity: 2.58-2.91
Formation & geological history
Formed through the deposition of silica-rich fluids in sedimentary or volcanic environments, often containing iron impurities that give it a yellow color.
Uses & applications
Used in carving, as tumbling rough, and in making cabochons for jewelry. Popular in metaphysical practices.
Geological facts
Jasper is an opaque variety of chalcedony. The yellow color is typically caused by goethite or iron oxide inclusions.
Field identification & locations
Identify by its opaque nature, yellow color, conchoidal fracture, and hardness (cannot be scratched by steel). Commonly found worldwide, including India, Russia, and the USA.
