sedimentary
Jasper
SiO2 (Microcrystalline Quartz)
AI-generated identification · may be incorrectHardness 6.5-7 on Mohs scale. Displays multicolored patterns of green, red, and brown with a waxy to vitreous luster and conchoidal fracture.
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Physical properties
Hardness 6.5-7 on Mohs scale. Displays multicolored patterns of green, red, and brown with a waxy to vitreous luster and conchoidal fracture.
Formation & geological history
Formed by the silica-rich precipitation or deposition of fine-grained quartz in marine environments or hydrothermal veins.
Uses & applications
Used widely for ornamental carvings, polished cabochons in jewelry, and as a durable decorative stone.
Geological facts
Jasper has been utilized by ancient civilizations for over 4,000 years to create tools, seals, and amulets.
Field identification & locations
Easily identified by its opaque nature and vibrant color patches; found globally in weathered volcanic regions and riverbeds.
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Sandstone or Siltstone
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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