Mineralogy Database

Brunogeierite Mineral Data

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General Brunogeierite Information

Help on Chemical  Formula: Chemical Formula: (Ge++,Fe++)Fe+++2O4
Help on Composition: Composition: Molecular Weight = 244.11 gm
   Iron       51.47 %  Fe    7.36 % FeO / 65.42 % Fe2O3
   Germanium  22.31 %  Ge   32.14 % GeO2
   Oxygen     26.22 %  O
             ______        ______ 
             100.00 %      104.92 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ge0.75Fe2+0.25Fe3+2O4
Help on Environment: Environment: In the lower oxidation zone of a dolostone-hosted hydrothermal polymetallic ore deposit, at a depth of 930 meters. Encrusting tennantite and inclusions in sphalerite and magnetite.
Help on IMA Status: IMA Status: Approved IMA 1972
Help on Locality: Locality: From Tsumeb, Namibia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Dr. Bruno H. Geier (1902- ), formerly Chief Mineralogist, Tsumeb Corporation, Tsumeb, Namibia.
Help on Name Pronunciation: Name Pronunciation: Brunogeierite + Pronunciation Say BRUNOGEIERITE