Rock Identifier
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) — mineral
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 incorrect

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.

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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.