| |
 |
Potassicarfvedsonite Mineral Data
|
|
|
General Potassicarfvedsonite Information
|
 Chemical Formula: |
KNa2Fe++4Fe+++Si8O22(OH)2 |
| Composition: |
Molecular Weight = 962.95 gm |
| |
Potassium 2.72 % K 3.28 % K2O |
| |
Sodium 5.18 % Na 6.98 % Na2O |
| |
Lithium 0.21 % Li 0.45 % Li2O |
| |
Calcium 0.21 % Ca 0.29 % CaO |
| |
Magnesium 0.03 % Mg 0.04 % MgO |
| |
Titanium 0.25 % Ti 0.41 % TiO2 |
| |
Manganese 1.08 % Mn 1.40 % MnO |
| |
Aluminum 0.31 % Al 0.58 % Al2O3 |
| |
Zinc 0.14 % Zn 0.17 % ZnO |
| |
Iron 27.14 % Fe 24.55 % FeO / 11.53 % Fe2O3 |
| |
Silicon 22.63 % Si 48.42 % SiO2 |
| |
Hydrogen 0.19 % H 1.69 % H2O |
| |
Oxygen 39.56 % O |
| |
Fluorine 0.36 % F 0.36 % F |
| |
- %
F -0.15 % -O=F2 |
| |
______ ______ |
| |
100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
K0.67Na0.22Na1.95Ca0.05Fe2+3.29Fe3+1.26Li0.29Mn2+0.19Ti0.05Zn0.02Mg0.01Si7.76
Fe3+0.13Al0.11O22OH1.81F0.18 |
| Environment: |
Alkaline pegmatites in agpaitic complexe Il�maussaq (Greenland). Amphibole group |
| IMA Status: |
Approved IMA 2003 (Dana # Added) |
| Locality: |
Il�maussaq complex, Greenland. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the K-dominant analogue of arfvedsonite. |
| Synonym: |
IMA2003-043 |
| |