View changes made in:
  • Oct 13, 2017
    • Cordierite
      • IMA Ideal Chemistry changed from "Mg2Al3(AlSi5)O18" to "Mg2Al4Si5O18"
  • May 30, 2016
    • Cordierite
      • RRUFF Ideal Chemistry changed from "Mg2Al4Si5O18" to "Mg2Al3(AlSi5)O18"
      • IMA Ideal Chemistry changed from "Mg2Al4Si5O18" to "Mg2Al3(AlSi5)O18"
  • Aug 2, 2009
    • Cordierite
      • Mineral Comment changed to

        Lucas J A H (1813) XIII. Cordierite (Iolithe), in Tableau Méthodique Espèces Minérales, Seconde Partie, D'Hautel (Paris) 219-222

  • Apr 4, 2007
    • Cordierite
      • IMA Ideal Chemistry changed to "Mg2Al4Si5O18"