Mineralogy Database

Chestermanite Mineral Data

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General Chestermanite Information

Help on Chemical  Formula: Chemical Formula: Mg2(Fe+++,Mg,Al,Sb+++++)BO3O2
Help on Composition: Composition: Molecular Weight = 192.66 gm
   Magnesium  27.75 %  Mg   46.02 % MgO
   Aluminum    1.40 %  Al    2.65 % Al2O3
   Iron       17.39 %  Fe   24.87 % Fe2O3
   Boron       5.61 %  B    18.07 % B2O3
   Antimony    6.32 %  Sb    8.40 % Sb2O5
   Oxygen     41.52 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg2Fe3+0.6Mg0.2Al0.1Sb0.1BO5
Help on IMA Status: IMA Status: Approved IMA 1988
Help on Locality: Locality: Twin Lakes region, Fresno County, California, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Charles W. Chesterman (1913-1991), U. S. Geologist who discovered the mineral.
Help on Synonym: Synonym: ICSD 71036
  PDF 45-1415