Mineralogy Database

Sadanagaite Mineral Data

Search Webmineral :
  

General Sadanagaite Information

Help on Chemical Formula: Chemical Formula: (K,Na)Ca2(Fe++,Mg,Al,Ti)5[(Si,Al)8O22](OH)2
Help on Composition: Composition: Molecular Weight = 931.99 gm
   Potassium   3.15 %  K     3.79 % K2O
   Sodium      0.62 %  Na    0.83 % Na2O
   Calcium     8.60 %  Ca   12.03 % CaO
   Magnesium   3.91 %  Mg    6.49 % MgO
   Titanium    1.28 %  Ti    2.14 % TiO2
   Aluminum    7.96 %  Al   15.04 % Al2O3
   Iron       14.98 %  Fe   19.27 % FeO
   Silicon    18.08 %  Si   38.68 % SiO2
   Hydrogen    0.22 %  H     1.93 % H2O
   Oxygen     41.20 %  O
             ______        ______ 
             100.00 %      100.21 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K0.75Na0.25Ca2Fe2+2.5Mg1.5Al0.75Ti0.25(Si6Al2O22)(OH)2
Help on Environment: Environment: With lenses in titanian diopside (fassaite).
Help on IMA Status: IMA Status: Approved IMA 1984
Help on Locality: Locality: Yuge Island, Fukui Prefecture, Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Ryoichi Sadanaga (1920-), professor emeritus, University of Tokyo.
Help on Name Pronunciation: Name Pronunciation: Sadanagaite + Pronunciation Say SADANAGAITE