Mineralogy Database

Ekmanite Mineral Data

Search Webmineral :
  
Advertisment

General Ekmanite Information

Help on Chemical  Formula: Chemical Formula: (Fe++,Mg,Mn,Fe+++)3(Si,Al)4O10(OH)2•2(H2O)
Help on Composition: Composition: Molecular Weight = 440.08 gm
   Magnesium   2.21 %  Mg    3.66 % MgO
   Manganese   3.75 %  Mn    4.84 % MnO
   Aluminum    6.13 %  Al   11.58 % Al2O3
   Iron       16.50 %  Fe   16.33 % FeO /  5.44 % Fe2O3
   Silicon    19.15 %  Si   40.96 % SiO2
   Hydrogen    1.37 %  H    12.28 % H2O
   Oxygen     50.90 %  O
             ______        ______ 
             100.00 %       95.09 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+Mg0.4Mn2+0.3Fe3+0.3Si3AlO10(OH)2�2(H2O)
Help on Environment: Environment: Probably a Mn rich stilpnomelane.
Help on IMA Status: IMA Status: Discredited Am. Min. 1954 - Valid Species (Pre-IMA) 1892
Help on Locality: Locality: Brunsjogruvan, Gryhytte, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Unknown.