| |
 |
Agardite-(Ce) Mineral Data
|
|
|
General Agardite-(Ce) Information
|
 Chemical Formula: |
(Ce,Ca)Cu6(AsO4)3(OH)6•3(H2O) |
| Composition: |
Molecular Weight = 1,070.95 gm |
| |
Calcium 0.86 % Ca 1.20 % CaO |
| |
Europium 0.28 % Eu 0.33 % Eu2O3 |
| |
Lanthanum 1.95 % La 2.28 % La2O3 |
| |
Cerium 4.32 % Ce 5.06 % Ce2O3 |
| |
Samarium 0.42 % Sm 0.49 % Sm2O3 |
| |
Gadolinium 0.44 % Gd 0.51 % Gd2O3 |
| |
Dysprosium 0.15 % Dy 0.17 % Dy2O3 |
| |
Yttrium 0.75 % Y 0.95 % Y2O3 |
| |
Iron 0.26 % Fe 0.34 % FeO |
| |
Copper 34.30 % Cu 42.93 % CuO |
| |
Silicon 0.45 % Si 0.95 % SiO2 |
| |
Arsenic 20.15 % As 30.90 % As2O5 |
| |
Hydrogen 1.24 % H 11.10 % H2O |
| |
Sulfur 0.15 % S 0.34 % S2O5 |
| |
Neodymium 2.02 % Nd 2.36 % Nd2O3 |
| |
Oxygen 32.27 % O |
| |
______ ______ |
| |
100.00 % 99.91 % = TOTAL OXIDE |
| Empirical Formula: |
Ce0.33Ca0.23La0.15Nd0.15Y0.09Sm0.03Gd0.03Eu0.02Dy0.01Cu5.78Fe2+0.05As2.88Si0.17S0.05
O12(OH)6�3.6(H2O) |
| Environment: |
Oxidation products that formed on barite and quartz first noticed in 1970. |
| IMA Status: |
Approved IMA 2004 (Dana # Added) |
| Locality: |
Clara mine, near Oberwolfach in the central Black Forest, Germany. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the Ce-dominant analog of agardite-(La) and agardite-(Y). |
| Name Pronunciation: |
Agardite-(Ce)  |
| Synonym: |
ICSD 31255 |
| |
IMA2003-030 |
| |
PDF 75-1695 |
| |