Mineralogy Database

Lemoynite Mineral Data

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General Lemoynite Information

Help on Chemical  Formula: Chemical Formula: (Na,K)2CaZr2Si10O26•5-6(H2O)
Help on Composition: Composition: Molecular Weight = 1,075.15 gm
   Potassium   3.27 %  K     3.94 % K2O
   Sodium      2.35 %  Na    3.17 % Na2O
   Calcium     3.35 %  Ca    4.69 % CaO
   Zirconium  15.27 %  Zr   20.63 % ZrO2
   Niobium     0.86 %  Nb    1.24 % Nb2O5
   Iron        0.52 %  Fe    0.67 % FeO
   Silicon    26.12 %  Si   55.88 % SiO2
   Hydrogen    1.07 %  H     9.55 % H2O
   Oxygen     47.17 %  O
             ______        ______ 
             100.00 %       99.78 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na1.1K0.9Ca0.9Fe2+0.1Zr1.8Nb0.1Si10O26�5.7(H2O)
Help on Environment: Environment: In pegmatite in an intrusive alkalic gabbro-syenite complex.
Help on IMA Status: IMA Status: Approved IMA 1969
Help on Locality: Locality: Mont Saint-Hilaire, Quebec, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Charles Lemoyne (1625-1685), Lord of Longuevil, and his four sons, well-known personalites in French-Canadian history.
Help on Name Pronunciation: Name Pronunciation: Lemoynite + Pronunciation Say LEMOYNITE
Help on Synonym: Synonym: ICSD 60676
  IMA1968-013
  PDF 24-1072