mineral

Iron-rich laterite or limonite/goethite-bearing rock

Hydrated iron oxides, chiefly goethite (α-FeO(OH)) and limonite (FeO(OH)·nH₂O), likely in a lateritic matrix

AI-generated identification · may be incorrect

Orange-brown, earthy to slightly granular, with dull-to-submetallic luster and no visible cleavage; typical hardness is about 4–5.5 Mohs, though porous material may be softer. The rusty coloration indicates abundant oxidized iron.

Identified August 12, 2026More mineral →

Explore Iron-rich laterite or limonite/goethite-bearing rock in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

At a glance

Common name: Iron-rich laterite or limonite/goethite-bearing rock
Scientific name: Hydrated iron oxides, chiefly goethite (α-FeO(OH)) and limonite (FeO(OH)·nH₂O), likely in a lateritic matrix
Category: mineral
Identified: August 12, 2026
Method: Standard

AI Estimated Value

Typically $1–$15 for a common hand specimen; attractive crystalline or unusually rich ore specimens may sell for $20–$75.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Likely formed by intense chemical weathering and oxidation of iron-bearing rock in a warm, humid terrestrial environment; laterite commonly develops over long periods, generally during the Cenozoic, though exact age cannot be determined from the image.

Uses & applications

Used as an iron ore when sufficiently rich, and as a natural pigment (ochre); ordinary specimens have modest educational or collector value.

Geological facts

Goethite and limonite produce yellow, orange, and red-brown colors through iron oxidation and hydration. A yellow-brown streak and strong response to a magnet, if present, support an iron-rich identification.

Field identification & locations

Common in tropical and subtropical soils and weathering profiles, especially over basalt or other iron-bearing rocks. Field tests include a yellow-brown streak, earthy texture, and possible weak magnetism; definitive identification requires testing or analysis.