Specular Hematite (Polished Sphere)

Physical Properties

Hardness: 5.5–6.5 Mohs scale; Color: Metallic grey to black; Luster: Metallic; Crystal Structure: Trigonal; Cleavage: None; Specific Gravity: 5.26

Formation & Geological History

Formed in hydrothermal veins, as a result of volcanic activity, or in sedimentary environments as banded iron formations (BIFs) dating back billions of years.

Uses & Applications

Primary ore of iron; also used in polishing compounds (jeweler's rouge), protective coatings, jewelry, and metaphysical collecting.

Geological Facts

Hematite is known as the 'blood stone' because its streak and powdered form are blood-red, even though the crystal looks black or silver. It is responsible for the red color of Mars' surface.

Field Identification & Locations

Identify by its high density (feels heavy for its size) and by performing a streak test on unglazed porcelain, which will leave a distinct reddish-brown mark. Commonly found in Brazil, Australia, and the Lake Superior region.

Identified on: 5/2/2026

Mode: Standard