mineral
Red Jasper
Silicon Dioxide with Iron Inclusions (SiO2)
AI-generated identification · may be incorrectMohs hardness of 6.5 to 7; deep reddish-brown color; opaque with a dull to waxy luster; microcrystalline quartz structure with conchoidal fracture.
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Physical properties
Mohs hardness of 6.5 to 7; deep reddish-brown color; opaque with a dull to waxy luster; microcrystalline quartz structure with conchoidal fracture.
Formation & geological history
Formed through the hydrothermal deposition of silica-rich fluids or chemical precipitation in marine environments, often dating from the Precambrian era.
Uses & applications
Widely used for cabochons, beads, ornamental carvings, and lapidary collections due to its ability to take a high polish.
Geological facts
Red jasper has been utilized since ancient times for amulets, seals, and weaponry, mentioned frequently in ancient Greek and Roman lapidary texts.
Field identification & locations
Identified by its distinctive deep red color, hardness, and smooth waxy feel; commonly found in riverbeds and mountainous regions worldwide.
