Hematite
Hematite · Mineral Specimen and Semi-Precious Gemstone
Crystal System
Trigonal, commonly occurring as massive, botryoidal, tabular, or micaceous habits
Mineral Group
Oxides
Chemical Formula
Fe2O3
Formation Process
Forms via hydrothermal veins, sedimentary processes, and as an accessory mineral in igneous and metamorphic rocks
About This Crystal
The specimen is a smoothly tumbled, polished stone displaying a dark metallic gray to silver-black coloration with a high, mirror-like metallic luster, typical of processed or tumbled hematite.
Physical Characteristics
Metallic gray to black body color, distinctive reddish-brown streak, uneven to conchoidal fracture, lack of true cleavage, specific gravity of approximately 5.26, and brittle tenacity
Optical Properties
Opaque with a metallic to sub-metallic luster; shows no transmission of light or internal optical phenomena
Hardness & Durability
Origin Region
Worldwide, with significant deposits in Brazil, Italy, Australia, and the United States
Hardness & Durability
Mohs hardness of 5.5 to 6.5; moderately durable but can chip or scratch with rough handling or contact with harder minerals
Care & Maintenance
Clean with warm soapy water and a soft cloth; avoid harsh chemicals and prolonged exposure to moisture to prevent potential surface alteration
Rarity & Value
Common and widely accessible, highly affordable in tumbled or polished forms
Special Characteristics
Remarkable for its distinct reddish-brown streak despite its metallic silver appearance, and high iron content
Lore & History
Historically used as a pigment (red ochre) since ancient times and associated in modern crystal lore with grounding, protection, and balancing energy