| |
 |
Ardennite-(As) Mineral Data
|
|
|
General Ardennite-(As) Information
|
 Chemical Formula: |
(Mn++,Ca,Mg)4(Al,Mg,Fe)6(SiO4)2(Si3O10)(AsO4,VO4)(OH)6 |
| Composition: |
Molecular Weight = 1,036.05 gm |
| |
Calcium 3.09 % Ca 4.33 % CaO |
| |
Magnesium 3.28 % Mg 5.45 % MgO |
| |
Manganese 14.85 % Mn 19.17 % MnO |
| |
Aluminum 12.24 % Al 23.13 % Al2O3 |
| |
Vanadium 0.49 % V 0.88 % V2O5 |
| |
Iron 2.16 % Fe 3.08 % Fe2O3 |
| |
Silicon 13.55 % Si 29.00 % SiO2 |
| |
Arsenic 6.51 % As 9.98 % As2O5 |
| |
Hydrogen 0.58 % H 5.22 % H2O |
| |
Oxygen 43.24 % O |
| |
______ ______ |
| |
100.00 % 100.23 % = TOTAL OXIDE |
| Empirical Formula: |
Mn2+2.8Ca0.8Mg1.4Al4.7Fe3+0.4(AsO4)0.9(VO4)0.1(SiO4)2(Si3O10)(OH)6 |
| Environment: |
In pegmatites and quartz veins in schist and highly oxidized Mn, Al-rich metasediments. Forms a series with ardennite-(V). |
| IMA Status: |
Valid Species (Pre-IMA) 1872, Renamed 2007 to Adrennite-(As) |
| Locality: |
Salmchateau in the Ardennes Mountains, Belgium. Link to MinDat.org Location Data. |
| Name Origin: |
After the locality. Renamed to ardennite-(As) with the discovery of ardennite-(V). |
| Name Pronunciation: |
Ardennite-(As) + Pronunciation  |
| Synonym: |
Ardennite |
| |
Dewalquite |
| |