Mineral
Jasper
SiO2
AI-generated identification · may be incorrectHardness: 6.5-7; Color: Red, brown, yellow, green; Luster: Vitreous to dull; Crystal structure: Trigonal (microcrystalline); Cleavage: None; Specific gravity: 2.5-2.9
- Hardness
- 6
- Color
- Red, brown, yellow, green
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6.5-7; Color: Red, brown, yellow, green; Luster: Vitreous to dull; Crystal structure: Trigonal (microcrystalline); Cleavage: None; Specific gravity: 2.5-2.9
Formation & geological history
Forms in sedimentary environments, often associated with iron oxides. Can be of various geological ages.
Uses & applications
Used in lapidary, jewelry, and ornamental objects.
Geological facts
Red jasper gets its color from iron inclusions.
Field identification & locations
Identify by its opaque nature, red color, and conchoidal fracture. Common worldwide.
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Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
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Calcite (CaCO₃), likely fluorite (CaF₂), with possible quartz and iron/manganese oxides
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Septarian Pebble
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Granite
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