View changes made in:
  • Oct 13, 2017
    • Armstrongite
      • IMA Ideal Chemistry changed from "CaZrSi6O15·2H2O" to "CaZr(Si6O15)·2H2O"
  • Nov 25, 2014
    • Armstrongite
      • Mineral Comment changed from

        Vladykin N V, Kovalenko V I, Kashaev A A, Sapozhnikov A N, Pisarskaya V A (1973) A new silicate of calcium and zirconium - armstrongite, Doklady Akademii Nauk SSSR 209, 1185-1188

        to

        Vladykin N V, Kovalenko V I, Kashaev A A, Sapozhnikov A N, Pisarskaya V A (1973) A new silicate of calcium and zirconium - armstrongite, Doklady Akademii Nauk SSSR 209, 1185-1188

        Chemical formula revised from CaZrSi6O15·3H2O:
        Mesto E, Kaneva E, Schingaro E, Vladykin N, Lacalamita M, Scordari F (2014) Armstrongite from Khan Bogdo (Mongolia): Crystal structure determination and implications for zeolite-like cation exchange properties. American Mineralogist 99, 2424-2432

  • Nov 24, 2014
    • Armstrongite
      • RRUFF Ideal Chemistry changed from "CaZrSi6O15·3H2O" to "CaZr4+Si6O15·2H2O"
      • Mineral Comment changed from

        Vladykin N V, Kovalenko V I, Kashaev A A, Sapozhnikov A N, Pisarskaya V A (1973) A new silicate of calcium and zirconium – armstrongite, Doklady Akademii Nauk SSSR 209, 1185-1188

        to

        Vladykin N V, Kovalenko V I, Kashaev A A, Sapozhnikov A N, Pisarskaya V A (1973) A new silicate of calcium and zirconium - armstrongite, Doklady Akademii Nauk SSSR 209, 1185-1188

  • Nov 17, 2014
    • Armstrongite
      • IMA Ideal Chemistry changed from "CaZrSi6O15·3H2O" to "CaZrSi6O15·2H2O"
  • Aug 9, 2012
    • Armstrongite
      • Mineral Comment changed from

        Vladykin N V, Kovalenko V I, Kashaev A A, Sapozhnikov A N, Pisarskaya V A (1973) A new silicate of calcium and zirconium – armstrongite, Doklady Akademii Nauk SSSR 209, 1185-1188

        Fleischer M (1974) New mineral names, American Mineralogist 59, 208-212

        to

        Vladykin N V, Kovalenko V I, Kashaev A A, Sapozhnikov A N, Pisarskaya V A (1973) A new silicate of calcium and zirconium – armstrongite, Doklady Akademii Nauk SSSR 209, 1185-1188

  • Jul 14, 2012
    • Armstrongite
      • RRUFF Ideal Chemistry changed from "CaZrSi6O15·2.5H2O" to "CaZrSi6O15·3H2O"
      • IMA Ideal Chemistry changed from "CaZrSi6O15·2.5H2O" to "CaZrSi6O15·3H2O"
  • Sep 28, 2008
    • Armstrongite
      • RRUFF Ideal Chemistry changed from "CaZrSi6O15·3H2O" to "CaZrSi6O15·2.5H2O"
      • IMA Ideal Chemistry changed from "CaZrSi6O15·3H2O" to "CaZrSi6O15·2.5H2O"
  • Feb 16, 2008
    • Armstrongite
      • RRUFF Ideal Chemistry changed from "CaZrSi6O15·2.5H2O" to "CaZrSi6O15·3H2O"
      • IMA Ideal Chemistry changed from "CaZrSi6O15·2.5H2O" to "CaZrSi6O15·3H2O"
  • Apr 1, 2007
  • Jun 27, 2006
    • Armstrongite
      • IMA Ideal Chemistry changed to "CaZrSi6O15·2.5H2O"