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Manganiandrosite-(La) Mineral Data
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General Manganiandrosite-(La) Information
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 Chemical Formula: |
(Mn,Ca)(La,Ce,Ca,Nd)AlMn+++Mn++(SiO4)(Si2O7)O(OH) |
| Composition: |
Molecular Weight = 595.24 gm |
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Calcium 2.02 % Ca 2.83 % CaO |
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Lanthanum 11.67 % La 13.68 % La2O3 |
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Cerium 4.71 % Ce 5.51 % Ce2O3 |
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Manganese 25.38 % Mn 20.86 % MnO / 13.26 % Mn2O3 |
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Aluminum 4.53 % Al 8.56 % Al2O3 |
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Silicon 14.16 % Si 30.28 % SiO2 |
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Hydrogen 0.17 % H 1.51 % H2O |
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Neodymium 2.42 % Nd 2.83 % Nd2O3 |
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Oxygen 34.94 % O |
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______ ______ |
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100.00 % 99.33 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+0.75Ca0.3La0.5Ce0.2Nd0.1AlMn3+Mn2+(SiO4)(Si2O7)O(OH) |
| Environment: |
Forms a series with piemontite. Found in a manganese-rich silicate-carbonate rock. |
| IMA Status: |
Approved IMA 1994 (Dana # Added) |
| Locality: |
Petalon Mountain, Andros Island, Cyclades, Greece. Link to MinDat.org Location Data. |
| Name Origin: |
Named after its discovery locality. |
| Synonym: |
Androsite |
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Androsite-(La) - Renamed to Manganiandrosite-(La) - Recommended nomenclature of epidote-group minerals, Eur. J. Mineral. 2006, 18, 551-567. |
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IMA1994-048 |
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