mineral

Iron-rich rock, likely hematite/goethite-rich ironstone

Hematite (α-Fe₂O₃), possibly mixed with goethite (FeO(OH)) and gangue minerals

AI-generated identification · may be incorrect

Reddish-brown, rough and earthy to submetallic; likely hardness about 5–6.5 Mohs, with no obvious cleavage. Crystal structure and precise composition cannot be confirmed from the image; a red-brown streak would support hematite.

Identified September 29, 2026More mineral →

Explore Iron-rich rock, likely hematite/goethite-rich ironstone 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 rock, likely hematite/goethite-rich ironstone
Scientific name: Hematite (α-Fe₂O₃), possibly mixed with goethite (FeO(OH)) and gangue minerals
Category: mineral
Identified: September 29, 2026
Method: Standard

AI Estimated Value

About $1–$15 for a small, common rough specimen; higher value would require verified composition or unusual crystallization.

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

Formed by iron oxidation and concentration, commonly during weathering or sedimentary iron deposition; the specimen’s age and exact formation setting cannot be determined visually.

Uses & applications

Iron ores are major sources of steel; attractive specimens may be collected, but this piece does not show gem-quality material.

Geological facts

Hematite produces a distinctive red to reddish-brown streak even when the specimen itself appears dark or metallic.

Field identification & locations

The rusty color and rugged texture suggest iron oxides; test streak on unglazed porcelain and compare magnetism, since hematite is usually weakly magnetic or nonmagnetic. Iron oxides occur worldwide in weathering zones and iron-rich sedimentary deposits.