sedimentary

Iron-rich laterite or weathered ironstone fragment

Lateritic ironstone, composed mainly of iron oxides/hydroxides such as goethite and hematite

AI-generated identification · may be incorrect

Reddish-brown, earthy to dull luster, rough and porous; likely hardness about 4–6, with no obvious cleavage. Exact minerals and hardness cannot be confirmed from the image alone.

Identified October 13, 2026More sedimentary →

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Physical properties

Reddish-brown, earthy to dull luster, rough and porous; likely hardness about 4–6, with no obvious cleavage. Exact minerals and hardness cannot be confirmed from the image alone.

Formation & geological history

Forms through intense chemical weathering and leaching in warm, humid environments, concentrating iron near the surface; age varies widely and may be geologically recent to ancient.

Uses & applications

Laterite is used locally as building stone and road material; iron-rich deposits can also be mined as iron ore when sufficiently concentrated.

Geological facts

The red color commonly comes from hematite, while yellow-brown tones often reflect goethite; ironstone fragments can occur in soils and weathered rock exposures.

Field identification & locations

Its earthy red color, irregular porous texture, and rusty staining suggest iron-rich weathering material, but the image is insufficient for a precise identification. Laterite is widespread in tropical regions, including parts of Africa, India, Australia, and South America.