
mineral
Small reddish-brown pebble, possibly jasper or iron-stained quartz
Unidentified silica-rich pebble; visual identification is insufficient to distinguish jasper, quartz, or another material
AI-generated identification · may be incorrectSmooth, rounded, opaque reddish-brown surface with a slight sheen. If jasper, it is microcrystalline quartz (SiO₂), hardness about 6.5–7 Mohs; the image does not reveal cleavage or crystal structure.
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Physical properties
Smooth, rounded, opaque reddish-brown surface with a slight sheen. If jasper, it is microcrystalline quartz (SiO₂), hardness about 6.5–7 Mohs; the image does not reveal cleavage or crystal structure.
Formation & geological history
A natural pebble may have been rounded by water or abrasion; iron oxides can produce the reddish color. Its geological age and source cannot be determined from the photograph.
Uses & applications
If confirmed as jasper or quartz, it may be used for tumbling, beads, or small decorative objects; this specimen appears too small for construction use.
Geological facts
Jasper is an opaque variety of chalcedony, colored by mineral impurities, commonly iron oxides.
Field identification & locations
The smooth shape and earthy color are consistent with a small pebble, but a closer view and simple hardness or streak tests would be needed for identification. Similar material occurs in many gravel deposits worldwide.
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