mineral

Weathered iron-rich rock, possibly laterite or limonite-bearing stone

Hydrated iron oxides/hydroxides, chiefly limonite-goethite mixture; exact identification requires testing

AI-generated identification · may be incorrect

Brown-orange, earthy to dull luster, irregular granular texture, and no visible crystal faces or cleavage; typically Mohs 4–5.5, with moderate-to-high density and a possible yellow-brown streak.

Identified August 9, 2026More mineral →

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At a glance

Common name: Weathered iron-rich rock, possibly laterite or limonite-bearing stone
Scientific name: Hydrated iron oxides/hydroxides, chiefly limonite-goethite mixture; exact identification requires testing
Category: mineral
Identified: August 9, 2026
Method: Standard

AI Estimated Value

$1–$10 for a common unverified fragment; approximately $10–$50 for an attractive labeled mineral specimen.

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

Brown-orange, earthy to dull luster, irregular granular texture, and no visible crystal faces or cleavage; typically Mohs 4–5.5, with moderate-to-high density and a possible yellow-brown streak.

Formation & geological history

Forms through intense chemical weathering and oxidation of iron-bearing rocks or sulfide minerals, commonly in tropical soils, ironstone, and hydrothermal settings; age is site-dependent and cannot be determined from the image.

Uses & applications

Used as iron ore when sufficiently concentrated, and historically as a natural ochre pigment; ordinary specimens have little commercial or jewelry use.

Geological facts

The orange-brown coloration comes from ferric iron minerals. A reddish-yellow streak and attraction to a strong magnet, if present, can help distinguish iron-rich material from ordinary sandstone.

Field identification & locations

Common in lateritic terrains and weathered mineral deposits worldwide, including Australia, India, Brazil, and Africa. Field confirmation requires streak, hardness, density, magnetism, and ideally chemical or X-ray analysis.