mineral
Red jasper (likely)
Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored by iron oxides
AI-generated identification · may be incorrectOpaque, brick-red to orange-red, with a dull to waxy luster and irregular fracture; quartz hardness is about 7 Mohs. The photograph shows a rough, angular fragment, but crystal structure and exact composition cannot be confirmed visually.
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Physical properties
Opaque, brick-red to orange-red, with a dull to waxy luster and irregular fracture; quartz hardness is about 7 Mohs. The photograph shows a rough, angular fragment, but crystal structure and exact composition cannot be confirmed visually.
Formation & geological history
Jasper forms when silica-rich fluids or sediments become cemented and iron oxides impart color; it occurs in many geological settings and ages. This fragment’s specific source and age cannot be determined from the image.
Uses & applications
Used for beads, cabochons, carvings, and decorative objects; lower-grade material may be used as an ornamental stone.
Geological facts
Jasper is a trade name for opaque, patterned chalcedony or related silica-rich material; color and patterns vary widely.
Field identification & locations
The even rusty-red color and opaque, fine-grained appearance are consistent with jasper, though other iron-rich rocks can look similar. Common sources include India, Australia, Brazil, and the United States.
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