mineral
Orange-brown tumbled mineral specimen
Indeterminate; possibly iron-stained chalcedony, quartz, or jasper
AI-generated identification · may be incorrectSmall rounded, matte-to-waxy orange-brown piece with a vaguely translucent edge; likely hardness about 6–7 Mohs if quartz-family material. Crystal structure and cleavage cannot be determined from the image.
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Physical properties
Small rounded, matte-to-waxy orange-brown piece with a vaguely translucent edge; likely hardness about 6–7 Mohs if quartz-family material. Crystal structure and cleavage cannot be determined from the image.
Formation & geological history
May be naturally rounded silica material later tumbled and polished, with iron-oxide staining producing the color; geological age and locality are indeterminate.
Uses & applications
Commonly sold as a pocket stone, craft material, or inexpensive lapidary specimen; usually has minimal commercial value.
Geological facts
The diffuse orange color is typical of hematite or limonite staining in quartz or chalcedony, though the image lacks diagnostic detail.
Field identification & locations
Test hardness against glass, inspect translucency and waxy texture, and use a streak test; quartz-family material should not scratch easily with a steel knife and typically leaves no colored streak. Common sources include Brazil, India, Madagascar, and the western United States.
