sedimentary
Polished Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, vibrant red, yellow, and white banding, waxy luster, and conchoidal fracture.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, vibrant red, yellow, and white banding, waxy luster, and conchoidal fracture.
Formation & geological history
Formed by the accumulation of silica-rich sediments in marine environments, often associated with iron-rich bands over millions of years.
Uses & applications
Commonly used for ornamental carvings, cabochons in jewelry, and decorative display specimens.
Geological facts
Jasper has been used since ancient times for talismans, seals, and weaponry due to its toughness and ability to take a high polish.
Field identification & locations
Identify by its vitreous-to-waxy luster, high hardness scratching glass, and opaque multicolored patterns. Found globally, especially in riverbeds and mountainous regions.
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