mineral

Iron-rich rock, possibly hematite-rich ironstone

Likely hematite (Fe₂O₃) or a hematite-bearing ironstone; the photo is insufficient for a definitive identification

AI-generated identification · may be incorrect

Rough, granular, reddish-brown to coppery surface with a subdued metallic sparkle. Hematite has Mohs hardness 5–6.5, a trigonal crystal structure, and specific gravity around 5.3; a streak test can help distinguish it (hematite leaves a red-brown streak).

Identified October 5, 2026More mineral →

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At a glance

Common name: Iron-rich rock, possibly hematite-rich ironstone
Scientific name: Likely hematite (Fe₂O₃) or a hematite-bearing ironstone; the photo is insufficient for a definitive identification
Category: mineral
Identified: October 5, 2026
Method: Standard

AI Estimated Value

About $1–$15 for a small, common rough specimen; higher-quality or well-identified specimens may cost more.

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

Hematite forms by oxidation and precipitation of iron, including in sedimentary iron formations and weathered deposits. The specimen’s age and formation environment cannot be determined from the image.

Uses & applications

Hematite is an important iron ore and is also used as pigment and in polished ornamental pieces.

Geological facts

A reddish-brown streak is characteristic of hematite, even when its surface appears metallic or coppery.

Field identification & locations

Check streak on unglazed porcelain and compare heft: hematite is notably dense. Hematite occurs worldwide; avoid relying on color alone, since other iron-rich minerals can look similar.