Hematite
Description: High iron mineral
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| SiO2 | 9.90% | 2.39 | |
| Al2O3 | 3.20% | 0.46 | |
| Fe2O3 | 67.80% | 6.15 | |
| FeO | 10.00% | 1.77 | |
| MgO | 0.40% | 0.14 | |
| CaO | 2.40% | 0.62 | |
| TiO2 | 0.40% | 0.07 | |
| P2O5 | 2.30% | 0.24 | |
| H2O | 2.80% | n/a | |
| CO2 | 1.10% | n/a | |
| Oxide Weight | 1,398.83 | ||
| Formula Weight | 1,455.59 | ||
Notes
Natural hematite is mostly used as a crude material in the manufacture of steel. As finely ground material it's price is similar to synthetic red iron oxide. It generally contains 5-15% impurities. Thus, in ceramics it makes sense to use synthetic hematite for it's extra purity and particle size.
The chemistry shown here is only a sample, it will vary greatly depending on the deposit.
Related Information
Links
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Iron Oxide Red
Red iron oxide is the most common colorant used in ceramic bodies and glazes. As a powder, it is available in red, yellow, black and other colors. |
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Ilmenite
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| Materials |
Noor Hematite
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| Materials |
Ground Magnetite
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| Minerals |
Hematite
The mineral form of iron(III) oxide. Used for the manufacture of steel but also available on finely |
| URLs |
http://en.wikipedia.org/wiki/Hematite
Hematite at Wikipedia |
| URLs |
http://www.handbookofmineralogy.org/pdfs/Hematite.pdf
Hematite mineralogy |
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