Mineralogy Database

Hogtuvaite Mineral Data

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General Hogtuvaite Information

Help on Chemical Formula: Chemical Formula: (Ca,Na)2(Fe++,Fe+++,Ti,Mg,Mn)6(Si,Be,Al)6O20
Help on Composition: Composition: Molecular Weight = 837.17 gm
   Sodium      1.37 %  Na    1.85 % Na2O
   Calcium     7.18 %  Ca   10.05 % CaO
   Magnesium   1.45 %  Mg    2.41 % MgO
   Titanium    5.15 %  Ti    8.59 % TiO2
   Manganese   0.66 %  Mn    0.85 % MnO
   Beryllium   1.94 %  Be    5.38 % BeO
   Aluminum    1.93 %  Al    3.65 % Al2O3
   Iron       30.02 %  Fe   25.75 % FeO / 14.31 % Fe2O3
   Silicon    12.08 %  Si   25.84 % SiO2
   Oxygen     38.22 %  O
             ______        ______ 
             100.00 %       98.66 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca1.5Na0.5Fe2+3Fe3+1.5Ti0.9Mg0.5Mn2+0.1Si3.6Be1.8Al0.6O20
Help on Environment: Environment: As a late-stage metamorphic mineral in peraluminous granitic gneisses and mafic pegmatites associated with a beryllium deposit (near Mo i Rana, Norway).
Help on IMA Status: IMA Status: Approved IMA 1994
Help on Locality: Locality: Found about 16 km northwest of Mo i Rana, Norway Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Hogtuva Mountain, near the type locality in Norway.
Help on Name Pronunciation: Name Pronunciation: Hogtuvaite + Pronunciation Say HOGTUVAITE
Help on Synonym: Synonym: Hoegtuvaite
  IMA1990-051
  Makarochkinite