mineral
Tumbled dark reddish-brown stone, possibly garnet or jasper
Indeterminate; likely almandine garnet (Fe₃Al₂Si₃O₁₂) or iron-rich jasper (microcrystalline SiO₂)
AI-generated identification · may be incorrectSmall, polished/tumbled specimen with burgundy-brown color and dark areas; apparent vitreous to waxy luster. Garnet hardness is 6.5–7.5 Mohs with no cleavage; jasper is about 6.5–7 Mohs and opaque.
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Physical properties
Small, polished/tumbled specimen with burgundy-brown color and dark areas; apparent vitreous to waxy luster. Garnet hardness is 6.5–7.5 Mohs with no cleavage; jasper is about 6.5–7 Mohs and opaque.
Formation & geological history
Garnet forms in metamorphic rocks through recrystallization under heat and pressure; jasper forms from silica-rich fluids or sedimentary deposits. Exact age and origin cannot be determined from the image.
Uses & applications
Garnet is used as an abrasive and gemstone; jasper is used for cabochons, beads, carvings, and decorative objects.
Geological facts
The blurred image is insufficient for confident identification; translucency, streak, hardness, and specific gravity would distinguish garnet from jasper.
Field identification & locations
Check whether edges transmit light: garnet may be translucent, while jasper is opaque; garnet commonly shows crystal-like facets, whereas jasper has mottled or banded texture. Common sources include India, Brazil, Africa, and the United States.
