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Romeite Mineral Data
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General Romeite Information
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 Chemical Formula: |
(Ca,Fe++,Mn,Na)2(Sb,Ti)2O6(O,OH,F) |
| Composition: |
Molecular Weight = 410.04 gm |
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Sodium 0.56 % Na 0.76 % Na2O |
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Calcium 10.75 % Ca 15.04 % CaO |
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Titanium 5.84 % Ti 9.74 % TiO2 |
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Manganese 2.68 % Mn 3.46 % MnO |
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Iron 8.17 % Fe 10.51 % FeO |
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Antimony 44.54 % Sb 59.17 % Sb2O5 |
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Hydrogen 0.07 % H 0.66 % H2O |
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Oxygen 26.92 % O |
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Fluorine 0.46 % F 0.46 % F |
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- %
F -0.20 % -O=F2 |
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______ ______ |
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100.00 % 99.61 % = TOTAL OXIDE |
| Empirical Formula: |
Ca1.1Fe2+0.6Mn2+0.2Na0.1Sb1.5Ti0.5O6.6(OH)0.3F0.1 |
| Environment: |
Accessory mineral in metamorphosed manganese ores. |
| IMA Status: |
Valid Species (Pre-IMA) 1841 |
| Locality: |
San Marcel mine, Piedmont, near Vipiteno, Italy. Link to MinDat.org Location Data. |
| Name Origin: |
Named after the French crystallographer, Rome de I'lsle (1736-1770). |
| Name Pronunciation: |
Romeite  |
| Synonym: |
Antimony ochre |
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Atopite |
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Lewisite - Mn deficient, Ti-bearing romeite |
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