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Tapiolite-(Mn) Mineral Data
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General Tapiolite-(Mn) Information
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 Chemical Formula: |
(Mn++,Fe++)(Ta,Nb)2O6 |
| Composition: |
Molecular Weight = 482.71 gm |
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Calcium 0.33 % Ca 0.46 % CaO |
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Tantalum 63.73 % Ta 77.81 % Ta2O5 |
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Manganese 7.97 % Mn 10.29 % MnO |
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Niobium 5.77 % Nb 8.26 % Nb2O5 |
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Iron 2.31 % Fe 2.98 % FeO |
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Oxygen 19.89 % O |
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______ ______ |
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100.00 % 99.80 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+0.7O6Fe2+0.2Ca0.04Ta1.7Nb0.3 |
| Environment: |
Accessory mineral in a lithium-rich pegmatite dike. |
| IMA Status: |
Approved IMA 1983 |
| Locality: |
Viitaniemi pegmatite, Erajarvi area, Orivesi, Finland. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the MANGANese content and relationship to ferroTAPIOLITE. |
| Name Pronunciation: |
Tapiolite-(Mn) + Pronunciation  |
| Synonym: |
Manganotapiolite - Renamed to Tapiolite-(Mn) by Mineralogical Record, v39 (2008), p 131 |
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