mineral
Tumbled orange chalcedony or jasper pebble
Microcrystalline quartz, SiO₂; possibly iron-stained chalcedony/jasper
AI-generated identification · may be incorrectSmall rounded, polished stone with peach-orange color, translucent to opaque appearance, waxy/glassy luster, and no visible cleavage. Quartz hardness is about 7 Mohs; specific gravity is approximately 2.6.
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Physical properties
Small rounded, polished stone with peach-orange color, translucent to opaque appearance, waxy/glassy luster, and no visible cleavage. Quartz hardness is about 7 Mohs; specific gravity is approximately 2.6.
Formation & geological history
Likely formed when silica-rich fluids filled cavities or fractures, with iron oxides producing the orange coloration; later naturally rounded or machine-tumbled. Exact geological age and locality cannot be determined from the image.
Uses & applications
Used as a decorative tumbled stone, craft material, paperweight, or inexpensive jewelry component; jasper and chalcedony are popular lapidary materials.
Geological facts
The image does not show enough detail for a definitive distinction between chalcedony, jasper, orange agate, or dyed quartzite.
Field identification & locations
Test for hardness by attempting to scratch glass, though this can damage the specimen; quartz varieties should scratch it. Common sources include Brazil, Madagascar, India, Uruguay, and the western United States.
