mineral
Jasper
SiO2
AI-generated identification · may be incorrectHardness: 6.5-7, Color: Brown, red, yellow, green, opaque, Luster: Vitreous to dull, Crystal structure: Microcrystalline quartz, Cleavage: None, Specific gravity: 2.5-2.9
- Hardness
- 6
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Physical properties
Hardness: 6.5-7, Color: Brown, red, yellow, green, opaque, Luster: Vitreous to dull, Crystal structure: Microcrystalline quartz, Cleavage: None, Specific gravity: 2.5-2.9
Formation & geological history
Formed from silica-rich fluids in sedimentary or volcanic environments
Uses & applications
Used in jewelry, decorative items, and lapidary work
Geological facts
Jasper is an opaque variety of chalcedony, often patterned with various impurities.
Field identification & locations
Identified by its opacity, hardness, and conchoidal fracture. Commonly found globally.
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