| |
 |
Perraultite Mineral Data
|
|
|
General Perraultite Information
|
 Chemical Formula: |
(Na,Ca)2(Ba,K)2(Mn++,Fe++)8(Ti,Nb)4Si8O32(OH,F,O)6 |
| Composition: |
Molecular Weight = 1,766.01 gm |
| |
Potassium 1.11 % K 1.33 % K2O |
| |
Barium 11.66 % Ba 13.02 % BaO |
| |
Sodium 1.95 % Na 2.63 % Na2O |
| |
Calcium 1.13 % Ca 1.59 % CaO |
| |
Titanium 10.30 % Ti 17.19 % TiO2 |
| |
Manganese 15.55 % Mn 20.08 % MnO |
| |
Niobium 1.05 % Nb 1.51 % Nb2O5 |
| |
Iron 9.49 % Fe 12.20 % FeO |
| |
Silicon 12.72 % Si 27.22 % SiO2 |
| |
Hydrogen 0.26 % H 2.30 % H2O |
| |
Oxygen 32.61 % O |
| |
Fluorine 2.15 % F 2.15 % F |
| |
- %
F -0.91 % -O=F2 |
| |
______ ______ |
| |
100.00 % 100.32 % = TOTAL OXIDE |
| Empirical Formula: |
Na1.5K0.5Ca0.5Ba1.5Mn2+5Fe2+3Ti3.8Nb0.2Si8O32(OH)3.5F2(H2O)0.5 |
| Environment: |
In pegmatite dikes. Probable analog of jinshajiangite. |
| IMA Status: |
Approved IMA 1991 |
| Locality: |
DeMix quarry, Mont Saint Hilaire, Quebec, Canada. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Guy Perault (1937-) of Ecole Polytechnique, Montreal, Canada. |
| Name Pronunciation: |
Perraultite + Pronunciation  |
| Synonym: |
ICSD 87533 |
| |
IMA1984-033 |
| |
PDF 45-1346 |
| |