mineral
Rainbow Hematite Ring
Iron(III) oxide (Fe2O3) with thin-film coating
AI-generated identification · may be incorrectHardness: 5.5-6.5 (Mohs), Color: Metallic grey with iridescent rainbow sheen, Luster: Metallic/Submetallic, Crystal: Trigonal, Cleavage: None, Specific Gravity: 5.26.
- Hardness
- 5
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Physical properties
Hardness: 5.5-6.5 (Mohs), Color: Metallic grey with iridescent rainbow sheen, Luster: Metallic/Submetallic, Crystal: Trigonal, Cleavage: None, Specific Gravity: 5.26.
Formation & geological history
Hematite forms in sedimentary, igneous, or metamorphic environments through hydrothermal activity or precipitation from water. This specific specimen is man-made/treated with a titanium vapor deposition process.
Uses & applications
Primarily used for costume jewelry, magnetic therapy accessories, and decorative collectibles.
Geological facts
Natural iridescent hematite is called 'Turgite,' but the vibrant geometric pieces found in gift shops are typically sintered powdered iron oxide coated with a thin layer of titanium or aluminum to create the rainbow efecto.
Field identification & locations
Identify by its weight (dense for its size) and a red-brown streak test on unglazed porcelain. These rings are common in tourist areas.
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