| |
 |
Vicanite-(Ce) Mineral Data
|
|
|
General Vicanite-(Ce) Information
|
 Chemical Formula: |
(Ca,Ce,La,Th)15As+++++(As+++0.5,Na0.5)Fe+++Si6B4O40F7 |
| Composition: |
Molecular Weight = 2,554.77 gm |
| |
Sodium 0.45 % Na 0.61 % Na2O |
| |
Calcium 12.55 % Ca 17.56 % CaO |
| |
Lanthanum 13.59 % La 15.94 % La2O3 |
| |
Cerium 19.20 % Ce 22.48 % Ce2O3 |
| |
Thorium 9.08 % Th 10.34 % ThO2 |
| |
Iron 2.19 % Fe 3.13 % Fe2O3 |
| |
Silicon 6.60 % Si 14.11 % SiO2 |
| |
Boron 1.69 % B 5.45 % B2O3 |
| |
Arsenic 4.40 % As 1.94 % As2O3 / 4.50 % As2O5
|
| |
Oxygen 25.05 % O |
| |
Fluorine 5.21 % F 5.21 % F |
| |
- %
F -2.19 % -O=F2 |
| |
______ ______ |
| |
100.00 % 99.06 % = TOTAL OXIDE |
| Empirical Formula: |
Ca8Ce3.5La2.5ThAsAs0.5Na0.5Fe3+Si6B4O40F7 |
| Environment: |
Inside a volcanic ejectum from a pyroclastic formation. |
| IMA Status: |
Approved IMA 1995 |
| Locality: |
Vican (Vico lake) volcanic complex at Tre Croci, Ventralla (north of Rome), Latium, Veterbo provicne, Italy. Link to MinDat.org Location Data. |
| Name Origin: |
After its locality. |
| Name Pronunciation: |
Vicanite-(Ce)  |
| Synonym: |
IMA1991-050 |
| |