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Glittering
Stones >> Semi
Precious Stones >> Hematite
Semi Precious Stone Hematite
Hematite (AE) or hematite (BE) is the form mineral of Iron (III)
oxide, (Fe2O3), one of several iron oxides. The ore sometimes
contains slight amounts of titanium also. When shaped into ornaments,
it is often known as black diamond.
Hematite (kidney ore) from Michigan Hematite is
a very common mineral, colored black to steel and silver-gray,
brown to reddish brown, and even red. It is mined as the main
ore of iron. Varieties include Bloodstone, Iron Rose, Kidney Ore,
Martine, Paint Ore, Specula rite (Secular Hematite), Rainbow Hematite
and also Titano-hematite. While the forms of hematite vary, they
all have a very rust-red streak. Hematite is harder than pure
iron, but much more brittle.
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Historical Facts of Hematite
| Chemical Composition |
Iron(III) oxide, Fe2O3, a-Fe2O3 |
| Mohs Scale Hardness |
5.5 - 6.5 |
| Refractive index |
Opaque |
| Luster |
Metallic to splendent |
| Crystal system |
Hexagonal |
| Color |
Metallic grey to earthy red tones |
| Occurrence |
England, Mexico, Brazil, Australia, United States,
Canada |
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Gemstone Hematite Jewelry
| Hematite Bracelet |
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| Hematite Earrings |
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| Hematite Necklace |
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| Hematite Rings |
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