Specular Hematite with Quartz and Limonite

Hematite (Fe2O3) with Quartz (SiO2) and Limonite (FeO(OH)·nH2O)

Rock Type: Mineral

Specular Hematite with Quartz and Limonite

Physical Properties

Hardness: 5.5-6.5 (Hematite) / 7 (Quartz); Color: Silver-grey, white, orange/rust; Luster: Metallic to earthy; Structure: Trigonal; Gravity: 5.26

Formation & Geological History

Formed in hydrothermal veins or as a secondary alteration product in sedimentary and metamorphic environments, typically where iron-rich fluids interact with oxygen.

Uses & Applications

Primary ore of iron (Hematite), ornamental specimens, or geological study.

Geological Facts

Specular hematite gets its name from its 'mirror-like' tiny metallic flakes. The orange coloring is likely limonite or 'rust' from the oxidation of iron minerals.

Field Identification & Locations

Identify by its silver-grey metallic glitter (specularity) and the characteristic reddish-brown streak it leaves on a ceramic plate. Often found near iron mines.

Identified on: 4/27/2026

Mode: Standard