Mineralogy Database

Brianroulstonite Mineral Data

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General Brianroulstonite Information

Help on Chemical Formula: Chemical Formula: Ca3[B5O6(OH)6](OH)Cl2•8(H2O)
Help on Composition: Composition: Molecular Weight = 604.36 gm
   Calcium   19.89 %  Ca   27.84 % CaO
   Boron      8.94 %  B    28.80 % B2O3
   Hydrogen   3.84 %  H    34.28 % H2O
   Chlorine  11.73 %  Cl   11.73 % Cl
               -   %   Cl   -2.65 % -O=Cl2   
   Oxygen    55.59 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca3(B5O6)(OH)6(OH)Cl2•8(H2O)
Help on Environment: Environment: In the lower third of the Upper Halite member of the Mississippian-aged Widsor Group evaporites.
Help on IMA Status: IMA Status: Approved IMA 1997 (Dana # Added)
Help on Locality: Locality: Potash Corporation of Saskatchewan Mine, 5 km east of Penobsquis, Carwell Parish, Kings County, New Brunswick, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Brian V. Roulston (1948-), in recognition of his work on the geology of evaporite deposits.
Help on Name Pronunciation: Name Pronunciation: Brianroulstonite + Pronunciation Say BRIANROULSTONITE
Help on Synonym: Synonym: ICSD 89259
  IMA1996-009
  PDF 50-1632