mineral

Iron-rich jasper or weathered hematite fragment

Hematite (Fe₂O₃) in microcrystalline quartz/jasper matrix

AI-generated identification · may be incorrect

Dark reddish-brown, opaque, earthy to slightly vitreous luster; likely Mohs 5–6.5, with irregular fracture and no visible cleavage. The red-brown color suggests iron oxides, though the photograph cannot confirm composition.

Identified August 22, 2026More mineral →

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Physical properties

Formation & geological history

Likely formed by oxidation and silicification of iron-rich material in a sedimentary or hydrothermal environment; age depends on locality and may range from Precambrian to recent weathering. It may also be a fragment of iron-rich jasper.

Uses & applications

Common hematite and jasper are used as pigment, lapidary material, beads, and ornamental stone; this small rough fragment has little commercial value.

Geological facts

Hematite produces a distinctive red-to-reddish-brown streak on unglazed porcelain, even when the specimen appears dark. Magnetic response is usually weak or absent unless associated with magnetite.

Field identification & locations

Look for a red streak, substantial density, and rusty red-brown coloration; a strong magnet would suggest magnetite or metallic iron instead. Common sources include banded iron formations, oxidized ore zones, and gravel deposits worldwide.