Mineral
Jasper
Silicon dioxide, SiO2
AI-generated identification · may be incorrectHardness: 6.5-7 (Mohs scale), Color: Brown, red, yellow, or green, Luster: Vitreous to dull, Crystal structure: Microcrystalline, Cleavage: None, Specific gravity: 2.5-2.9
- Hardness
- 6
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Physical properties
Hardness: 6.5-7 (Mohs scale), Color: Brown, red, yellow, or green, Luster: Vitreous to dull, Crystal structure: Microcrystalline, Cleavage: None, Specific gravity: 2.5-2.9
Formation & geological history
Formed from silica-rich fluids that percolate through cracks in rocks, often in volcanic or sedimentary environments.
Uses & applications
Used in jewelry, decorative items, and as a collector's stone.
Geological facts
Jasper is an opaque variety of chalcedony. It gets its color from iron inclusions.
Field identification & locations
Identified by its opacity, hardness, and a wide variety of colors and patterns. Commonly found worldwide.
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Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
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Granite, a coarse-grained felsic intrusive igneous rock
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Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
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Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
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Granite
Granite (Phaneritic intrusive igneous rock)
igneous