View changes made in:
  • Jan 11, 2021
    • Murmanite
      • IMA Number changed to "IMA2016 s.p."
  • Mar 9, 2017
    • Murmanite
      • Mineral Comment changed from

        Chemical formula revised:
        Sokolova E (2006) From structure topology to chemical composition. I. Structural hierarchy and stereochemistry in titanium disilicate minerals, The Canadian Mineralogist 44, 1273-1330

        to

        Gutkova N (1930) Sur un nouveau titano-silicate - la mourmanite de Lujawrurt. Doklady Akademii Nauk SSSR 27, 731-736

        Chemical formula revised:
        Sokolova E (2006) From structure topology to chemical composition. I. Structural hierarchy and stereochemistry in titanium disilicate minerals, The Canadian Mineralogist 44, 1273-1330

  • Mar 5, 2017
    • Murmanite
      • IMA Ideal Chemistry changed from "Na2Ti2(Si2O7)O2·2H2O" to "Na2Ti2Na2Ti2(Si2O7)2O4(H2O)4"
      • RRUFF Ideal Chemistry changed from "Na2Ti4+2(Si2O7)O2·2H2O" to "Na2Ti4+2Na2Ti4+2(Si2O7)2O4(H2O)4"
  • Aug 2, 2014
    • Murmanite
      • RRUFF Ideal Chemistry changed from "Na2Ti2(Si2O7)O2·2H2O" to "Na2Ti4+2(Si2O7)O2·2H2O"
  • Mar 17, 2008
    • Murmanite
      • RRUFF Ideal Chemistry changed from "Na2(Ti,Nb)2Si2O9·nH2O" to "Na2Ti2(Si2O7)O2·2H2O"
      • IMA Ideal Chemistry changed from "Na2(Na,Ti)4Ti2Si4O14(O,H2O,OH,F)2·2H2O" to "Na2Ti2(Si2O7)O2·2H2O"
      • Mineral Comment changed to

        Chemical formula revised:
        Sokolova E (2006) From structure topology to chemical composition. I. Structural hierarchy and stereochemistry in titanium disilicate minerals, The Canadian Mineralogist 44, 1273-1330

  • May 26, 2007
    • Murmanite
      • IMA Ideal Chemistry changed to "Na2(Na,Ti)4Ti2Si4O14(O,H2O,OH,F)2·2H2O"
  • Apr 16, 2006
    • Murmanite
      • RRUFF Ideal Chemistry changed from "Na3(Ti,Nb)4(Si2O7)2O4·4(H2O)" to "Na2(Ti,Nb)2Si2O9·nH2O"