Mineralogy Database

Mackelveyite-(Y) Mineral Data

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General Mackelveyite-(Y) Information

Help on Chemical  Formula: Chemical Formula: NaBa3CaY(CO3)3(OH)6•3H2O
Help on Composition: Composition: Molecular Weight = 900.07 gm
   Barium    45.77 %  Ba   51.10 % BaO
   Sodium     2.55 %  Na    3.44 % Na2O
   Calcium    4.45 %  Ca    6.23 % CaO
   Yttrium    9.88 %  Y    12.54 % Y2O3
   Hydrogen   1.34 %  H    12.01 % H2O
   Carbon     4.00 %  C    14.67 % CO2
   Oxygen    32.00 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaBa3CaY(CO3)3(OH)6•3(H2O)
Help on Environment: Environment: Donnayite group. Withdrawn because it is a monoclinic polytype of mackelveyite-(Y).
Help on IMA Status: IMA Status: Withdrawn IMA 2007, Proposed IMA 2005
Help on Locality: Locality: Fabi quarry, near Lanzada, Valmalenco, Sondrio, Lombardy, Italy Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Commission on New Minerals, Nomenclature and Classification (CNMNC)
Help on Synonym: Synonym: IMA2005-012a
  Mckelveyite-(Y)