Mineralogy Database

Gaudefroyite Mineral Data

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General Gaudefroyite Information

Help on Chemical  Formula: Chemical Formula: Ca4Mn+++3-x(BO3)3(CO3)(O,OH)3
Help on Composition: Composition: Molecular Weight = 582.85 gm
   Calcium    27.51 %  Ca   38.49 % CaO
   Manganese  23.56 %  Mn   33.86 % Mn2O3
   Boron       5.56 %  B    17.92 % B2O3
   Hydrogen    0.13 %  H     1.16 % H2O
   Carbon      2.06 %  C     7.55 % CO2
   Oxygen     41.18 %  O
             ______        ______ 
             100.00 %       98.97 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca4Mn3+2.5(BO3)3(CO3)O2.25(OH)0.75
Help on Environment: Environment: An uncommon hydrothermal mineral in manganese deposits.
Help on IMA Status: IMA Status: Approved IMA 1964
Help on Locality: Locality: Tachgagalt, 17 km south-southwest of Ouarzazate, Anti-Atlas Mountains, Morocco. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Abbe Christophe Gaudefroy (1888-1971), French mineralogist who worked in Morocco.
Help on Name Pronunciation: Name Pronunciation: Gaudefroyite + Pronunciation Say GAUDEFROYITE
Help on Synonym: Synonym: ICSD 66846
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