| |
 |
Biraite-(Ce) Mineral Data
|
|
|
General Biraite-(Ce) Information
|
 Chemical Formula: |
Ce2Fe++(CO3)(Si2O7) |
| Composition: |
Molecular Weight = 551.07 gm |
| |
Barium 0.25 % Ba 0.28 % BaO |
| |
Sodium 0.08 % Na 0.11 % Na2O |
| |
Calcium 0.51 % Ca 0.71 % CaO |
| |
Lanthanum 14.37 % La 16.85 % La2O3 |
| |
Cerium 25.68 % Ce 30.08 % Ce2O3 |
| |
Praeseodymium 2.30 % Pr 2.69 % Pr2O3 |
| |
Samarium 0.55 % Sm 0.63 % Sm2O3 |
| |
Magnesium 1.10 % Mg 1.83 % MgO |
| |
Titanium 0.09 % Ti 0.14 % TiO2 |
| |
Manganese 1.10 % Mn 1.42 % MnO |
| |
Iron 6.08 % Fe 7.82 % FeO |
| |
Silicon 10.04 % Si 21.48 % SiO2 |
| |
Carbon 2.16 % C 7.91 % CO2 |
| |
Neodymium 6.54 % Nd 7.63 % Nd2O3 |
| |
Oxygen 28.57 % O |
| |
Fluorine 0.59 % F 0.59 % F |
| |
- %
F -0.25 % -O=F2 |
| |
______ ______ |
| |
100.00 % 99.93 % = TOTAL OXIDE |
| Empirical Formula: |
La0.57Nd0.25Pr0.09Sm0.02Ca0.07Na0.02Ba0.01Fe2+0.6Mg0.25Mn2+0.11Ti0.01(CO3)0.99Si1.97
O6.87F0.17 |
| Environment: |
Found in one of the veins of carbonate rocks among the fenites of Biraia cabonatite dike. |
| IMA Status: |
Approved IMA 2003 (Dana # Added) |
| Locality: |
Biraia, Vitim, Irkutsk Oblast, Zabaikalye, (Siberia), Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named after the locality. |
| Synonym: |
IMA2003-037 |
| |