sedimentary
Yellow Jasper
Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, opaque yellow to brownish-yellow color, waxy luster, microcrystalline quartz structure with conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, opaque yellow to brownish-yellow color, waxy luster, microcrystalline quartz structure with conchoidal fracture.
Formation & geological history
Forms through the precipitation of silica-rich fluids in sedimentary environments or hydrothermal veins, often over millions of years.
Uses & applications
Used primarily in ornamental carvings, cabochons, lapidary art, and metaphysical crystal collecting.
Geological facts
Jasper has been used since ancient times for talismans, seals, and weaponry like arrowheads due to its toughness.
Field identification & locations
Identify by its solid yellow color, lack of banding (unlike agate), high hardness, and smooth waxy feel.
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