sedimentary
Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, typically brown to red in color, with a waxy to dull luster and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, typically brown to red in color, with a waxy to dull luster and conchoidal fracture.
Formation & geological history
Formed through the silification of sedimentary or volcanic rocks, often precipitating from silica-rich hydrothermal fluids or marine environments.
Uses & applications
Used primarily for ornamental carving, cabochons, jewelry, and as a popular specimen for rock collectors.
Geological facts
Jasper has been utilized since ancient times for talismans, seals, and weaponry components due to its toughness and fracture properties.
Field identification & locations
Identify in the field by its opaque nature, hardness exceeding glass, smooth water-worn surface, and microcrystalline texture. Found globally in riverbeds and mountainous regions.
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