sedimentary

Iron-rich jasper / hematite-bearing breccia

Ferruginous jasper, chiefly microcrystalline SiO₂ with hematite/goethite (Fe₂O₃/FeO(OH)) and possible limonite

AI-generated identification · may be incorrect

Hardness typically 6.5–7 for jasper, about 5–6 for hematite-rich areas; opaque red, brown, black, and yellow, with earthy to locally submetallic luster. Massive, brecciated texture; no visible cleavage; high density, commonly about 2.7–4.5.

Identified August 8, 2026More sedimentary →

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At a glance

Common name: Iron-rich jasper / hematite-bearing breccia
Scientific name: Ferruginous jasper, chiefly microcrystalline SiO₂ with hematite/goethite (Fe₂O₃/FeO(OH)) and possible limonite
Category: sedimentary
Identified: August 8, 2026
Method: Standard

AI Estimated Value

Approximately $5–$30 as a hand specimen; $30–$100+ if unusually attractive, locality-documented, or polished.

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

Silica-rich material was cemented or replaced by iron oxides, producing the red-brown brecciated pattern; some pieces may be weathered banded iron formation or hydrothermal jasper. Precise age and locality cannot be determined from the photograph.

Uses & applications

Used as ornamental stone, cabochons, lapidary slabs, and collectible specimens; iron-rich varieties have minor historical importance as iron ore but this piece is primarily decorative.

Geological facts

The red color is mainly hematite, while yellow-orange zones commonly indicate goethite or limonite. A streak test can distinguish components: hematite gives a reddish-brown streak.

Field identification & locations

Likely jasper if it is hard, opaque, and takes a good polish; test with a steel file and inspect the streak on unglazed ceramic. Common in hydrothermal veins, volcanic terrains, and iron-rich sedimentary deposits worldwide.