| |
 |
Woodallite Mineral Data
|
|
|
General Woodallite Information
|
 Chemical Formula: |
Mg6Cr2(OH)16Cl2•4(H2O) |
| Composition: |
Molecular Weight = 659.31 gm |
| |
Magnesium 22.86 % Mg 37.90 % MgO |
| |
Aluminum 0.82 % Al 1.55 % Al2O3 |
| |
Chromium 9.46 % Cr 13.83 % Cr2O3 |
| |
Iron 4.24 % Fe 6.06 % Fe2O3 |
| |
Hydrogen 3.67 % H 32.79 % H2O |
| |
Carbon 0.36 % C 1.34 % CO2 |
| |
Chlorine 8.60 % Cl 8.60 % Cl |
| |
- %
Cl -1.94 % -O=Cl2 |
| |
Oxygen 49.99 % O |
| |
______ ______ |
| |
100.00 % 100.12 % = TOTAL OXIDE |
| Empirical Formula: |
Mg6.2Cr1.2Fe3+0.5Al0.2(OH)16Cl1.6(CO3)0.2�4(H2O) |
| Environment: |
Altered dunite associated with Cr minerals. |
| IMA Status: |
Approved IMA 2000 (Dana # Added) |
| Locality: |
Mount Keith nickel deposit, 90 km NNE of Leinster, Western Australia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Roy Woodall (1930-), Australian geologist. |
| Synonym: |
IMA2000-042 |
| |