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Taramellite Mineral Data
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General Taramellite Information
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 Chemical Formula: |
Ba4(Fe+++,Ti,Fe++,Mg)4(B2Si8O27)O2Clx (x=0 to 1) |
| Composition: |
Molecular Weight = 1,525.66 gm |
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Barium 30.60 % Ba 34.17 % BaO |
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Magnesium 0.16 % Mg 0.26 % MgO |
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Titanium 1.88 % Ti 3.14 % TiO2 |
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Iron 11.71 % Fe 13.66 % FeO / 1.57 % Fe2O3 |
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Silicon 14.36 % Si 30.72 % SiO2 |
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Boron 1.56 % B 5.02 % B2O3 |
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Lead 8.15 % Pb 8.78 % PbO |
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Chlorine 1.16 % Cl 1.16 % Cl |
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- %
Cl -0.26 % -O=Cl2 |
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Oxygen 30.41 % O |
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______ ______ |
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100.00 % 98.22 % = TOTAL OXIDE |
| Empirical Formula: |
Ba3.4Pb0.6Fe2+2.9Ti0.6Fe3+0.3Mg0.1B2.2Si7.8O29Cl0.5 |
| Environment: |
A contact-metamorphic mineral. |
| IMA Status: |
Valid Species (Pre-IMA) 1908 |
| Locality: |
Candoglia, in the Toce Valley, Piedmont, Italy Link to MinDat.org Location Data. |
| Name Origin: |
Named for Torquato Taramelli (1845-1922), Italian geologist. |
| Name Pronunciation: |
Taramellite + Pronunciation  |
| Synonym: |
ICSD 100266 |
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PDF 17-479 |
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