Mineralogy Database

Ardennite-(As) Mineral Data

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General Ardennite-(As) Information

Help on Chemical  Formula: Chemical Formula: (Mn++,Ca,Mg)4(Al,Mg,Fe)6(SiO4)2(Si3O10)(AsO4,VO4)(OH)6
Help on Composition: 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
Help on Empirical Formula: Empirical Formula: Mn2+2.8Ca0.8Mg1.4Al4.7Fe3+0.4(AsO4)0.9(VO4)0.1(SiO4)2(Si3O10)(OH)6
Help on Environment: Environment: In pegmatites and quartz veins in schist and highly oxidized Mn, Al-rich metasediments. Forms a series with ardennite-(V).
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1872, Renamed 2007 to Adrennite-(As)
Help on Locality: Locality: Salmchateau in the Ardennes Mountains, Belgium. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: After the locality. Renamed to ardennite-(As) with the discovery of ardennite-(V).
Help on Name Pronunciation: Name Pronunciation: Ardennite-(As) + Pronunciation Say ARDENNITE-(AS)
Help on Synonym: Synonym: Ardennite
  Dewalquite