| |
 |
Manganvesuvianite Mineral Data
|
|
|
General Manganvesuvianite Information
|
 Chemical Formula: |
Ca19Mn+++(Al,Mn+++,Fe+++)10(Mg,Mn++)2Si18O69(OH)9 |
| Composition: |
Molecular Weight = 2,951.26 gm |
| |
Calcium 25.67 % Ca 35.91 % CaO |
| |
Magnesium 1.40 % Mg 2.32 % MgO |
| |
Manganese 4.84 % Mn 0.96 % MnO / 5.88 % Mn2O3 |
| |
Aluminum 7.86 % Al 14.86 % Al2O3 |
| |
Iron 0.76 % Fe 1.08 % Fe2O3 |
| |
Silicon 16.94 % Si 36.24 % SiO2 |
| |
Hydrogen 0.30 % H 2.72 % H2O |
| |
Oxygen 42.23 % O |
| |
______ ______ |
| |
100.00 % 99.97 % = TOTAL OXIDE |
| Empirical Formula: |
Ca18.9Mn3+Al8.6Mn3+1.2Fe3+0.4Mg1.7Mn2+0.4Si17.8O69(OH)8.9 |
| Environment: |
Hydrothermal alteration of primary Mn ores. Found in vugs and veins. Mn-analogue of vesuvianite; structure |
| IMA Status: |
Approved IMA 2002 (Dana # Added) |
| Locality: |
Wessels and N'Chwaning II mines, Kalahari manganese fields, South Africa. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the relationship to vesuvianite (idocrase) and Mn. |
| Name Pronunciation: |
Manganvesuvianite  |
| Synonym: |
IMA2000-040 |
| |
Idocrase - Mn bearing |
| |
Manganidocrase |
| |
Vesuvianite - Mn bearing |
| |