sedimentary

Likely weathered iron-rich breccia or jasper

Silicified iron-oxide breccia; exact identification requires testing

AI-generated identification · may be incorrect

Reddish-brown, cream, and gray angular material with a dull to slightly vitreous luster, irregular fracture, and no visible crystal cleavage. Likely hardness about 5–7 Mohs if quartz-rich, with moderate-to-high density from iron oxides.

Identified August 14, 2026More sedimentary →

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Physical properties

Formation & geological history

Probably formed when silica cemented fragmented rock and iron minerals produced red hematite/goethite staining during weathering; the geological age cannot be determined from the image. It may also be a fragment of iron-rich jasper or altered volcanic rock.

Uses & applications

Common pieces are used as educational specimens, lapidary material, or decorative stone; attractive polished pieces may be collected but usually have modest value.

Geological facts

The contrasting red, tan, and gray patches suggest brecciation and mineral replacement rather than a single uniform mineral. A streak, hardness, and acid test would help distinguish jasper from ironstone or altered rock.

Field identification & locations

Look for quartz-like hardness, conchoidal fracture, red-brown streak, and strong iron staining; common settings include weathered volcanic or sedimentary terrains. Estimated value: $1–$15 for an ordinary specimen, or $20–$75 if unusually colorful and polished.