mineral

Specular Hematite

Hematite (Fe2O3)

Hardness: 5.5-6.5 on Mohs scale. Color: Steel-gray to black with a metallic, glittery luster (specular). Crystal structure: Trigonal. Streak: Reddish-brown. Specific gravity: 5.26.

Hardness: 5
Streak: Reddish-brown

Identified May 28, 2026More mineral →

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Physical properties

Hardness: 5.5-6.5 on Mohs scale. Color: Steel-gray to black with a metallic, glittery luster (specular). Crystal structure: Trigonal. Streak: Reddish-brown. Specific gravity: 5.26.

Formation & geological history

Formed in sedimentary, igneous, or metamorphic environments, often through the precipitation of iron-rich solutions or as a weathering product of other iron minerals.

Uses & applications

Primary ore of iron; used in heavy media separation, pigments, and as a collector specimen due to its unique sparkle.

Geological facts

The name comes from the Latin 'speculum', meaning mirror, because these shiny flakes were once used as primitive mirrors. Despite looking silver/grey, it leaves a red streak when rubbed on porcelain.

Field identification & locations

Identified by its high metallic glitter (micaceous habit) and its characteristic cherry-red streak. Commonly found in iron-rich banded formations like those in the Lake Superior region or Brazil.