View changes made in:
  • Sep 4, 2023
    • Mottanaite-(Ce)
      • RRUFF Ideal Chemistry changed from "Ca4Ce2Al(Be1.5   0.5)[B4Si4O22]O2" to "Ca4Ce3+2Al(Be1.5   0.5)[B4Si4O22]O2"
  • Oct 22, 2019
    • Mottanaite-(Ce)
      • Mineral Comment changed from

        Della Ventura G, Bonazzi P, Oberti R, Ottolini L (2002) Ciprianiite and mottanaite-(Ce), two new minerals of the hellandite group from Latium (Italy), American Mineralogist 87, 739-744

        Formula changed from Ca4(CeCa)AlBe2(Si4B4O22)O2:
        Hålenius U, Hatert F, Pasero M, Mills S J (2018) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 45. New minerals and nomenclature modifications approved in 2018. Mineralogical Magazine 82, Preprint

        to

        Della Ventura G, Bonazzi P, Oberti R, Ottolini L (2002) Ciprianiite and mottanaite-(Ce), two new minerals of the hellandite group from Latium (Italy), American Mineralogist 87, 739-744

        Formula changed from Ca4(CeCa)AlBe2(Si4B4O22)O2:
        Oberti R, Langone A, Boiocchi M, Bernabè E, Hawthorne F C (2019) News from the hellandite group: the redefinition of mottanaite and ciprianiite and the new mineral description of ferri-mottanaite-(Ce), the first Fe3+-dominant hellandite. European Journal of Mineralogy 31, 799-806

  • Nov 21, 2018
    • Mottanaite-(Ce)
      • IMA Ideal Chemistry changed from "Ca4(Ce,REE)Σ2Al(Be1.5   0.5)Σ2[B4Si4O22]O2" to "Ca4Ce2Al(Be1.5   0.5)Σ2[B4Si4O22]O2"
      • RRUFF Ideal Chemistry changed from "Ca4(Ce,REE)2Al(Be1.5   0.5)[B4Si4O22]O2" to "Ca4Ce2Al(Be1.5   0.5)[B4Si4O22]O2"
  • Nov 12, 2018
    • Mottanaite-(Ce)
      • RRUFF Ideal Chemistry changed from "Ca4(CeCa)AlBe2(B4Si4O22)O2" to "Ca4(Ce,REE)2Al(Be1.5   0.5)[B4Si4O22]O2"
      • IMA Ideal Chemistry changed from "Ca4(CeCa)AlBe2(Si4B4O22)O2" to "Ca4(Ce,REE)Σ2Al(Be1.5   0.5)Σ2[B4Si4O22]O2"
      • Mineral Comment changed from

        Della Ventura G, Bonazzi P, Oberti R, Ottolini L (2002) Ciprianiite and mottanaite-(Ce), two new minerals of the hellandite group from Latium (Italy), American Mineralogist 87, 739-744

        to

        Della Ventura G, Bonazzi P, Oberti R, Ottolini L (2002) Ciprianiite and mottanaite-(Ce), two new minerals of the hellandite group from Latium (Italy), American Mineralogist 87, 739-744

        Formula changed from Ca4(CeCa)AlBe2(Si4B4O22)O2:
        Hålenius U, Hatert F, Pasero M, Mills S J (2018) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 45. New minerals and nomenclature modifications approved in 2018. Mineralogical Magazine 82, Preprint

  • Oct 13, 2017
    • Mottanaite-(Ce)
      • IMA Ideal Chemistry changed from "Ca4(CeCa)AlBe2(B4Si4O22)O2" to "Ca4(CeCa)AlBe2(Si4B4O22)O2"
  • Sep 6, 2013
    • Mottanaite-(Ce)
      • RRUFF Ideal Chemistry changed from "Ca4(CeCa)AlBe2(Si4B4O22)O2" to "Ca4(CeCa)AlBe2(B4Si4O22)O2"
      • IMA Ideal Chemistry changed from "Ca4(CeCa)AlBe2(Si4B4O22)O2" to "Ca4(CeCa)AlBe2(B4Si4O22)O2"
      • Mineral Comment changed from

        Della Ventura G, Bonazzi P, Oberti R, Ottolini L (2002) Ciprianiite and mottanaite-(Ce), two new minerals of the hellandite group from Latium (Italy), American Mineralogist 87, 739-744

        Mandarino J A (2003) New minerals, The Canadian Mineralogist 41, 803-828

        to

        Della Ventura G, Bonazzi P, Oberti R, Ottolini L (2002) Ciprianiite and mottanaite-(Ce), two new minerals of the hellandite group from Latium (Italy), American Mineralogist 87, 739-744

  • Nov 12, 2008
    • Mottanaite-(Ce)
      • RRUFF Ideal Chemistry changed from "Ca4(Ce,Ca)2AlBe2O2Si4B4O22" to "Ca4(CeCa)AlBe2(Si4B4O22)O2"
      • IMA Ideal Chemistry changed from "Ca4(Ce,Ca)2AlBe2O2Si4B4O22" to "Ca4(CeCa)AlBe2(Si4B4O22)O2"
  • Mar 17, 2008
    • Mottanaite-(Ce)
      • RRUFF Ideal Chemistry changed from "Ca4(Ca,Ce)2AlBe2O2Si4B4O22" to "Ca4(Ce,Ca)2AlBe2O2Si4B4O22"
      • IMA Ideal Chemistry changed from "Ca4(Ca,Ce)2AlBe2O2Si4B4O22" to "Ca4(Ce,Ca)2AlBe2O2Si4B4O22"
  • Apr 16, 2006