Database of Raman spectroscopy, X-ray diffraction and chemistry of minerals

View changes made in:

May 6, 2021
- Penkvilksite
  - IMA Number changed to "IMA1973-016"
Oct 13, 2017
- Penkvilksite
  - IMA Ideal Chemistry changed from "Na₄Ti₂Si₈O₂₂·4H₂O" to "Na₂TiSi₄O₁₁·2H₂O"
Apr 5, 2017
- Penkvilksite
  - Mineral Comment changed from
    Bussen I V, Men'shikov Y P, Mer'kov A M, Nedorezova A P, Uspenskaya E I, Khomyakov A P (1974) Penkvilksite, a new hydrous silicate of titanium and sodium, Doklady Akademii Nauk SSSR 217, 1161-1164
    
    Fleischer M (1975) New mineral names, American Mineralogist 60, 340-341
    
    Redefined:
    Merlino S, Pasero M, Artioli G, Khomyakov A P (1994) Penkvilksite, a new kind of silicate structure: OD character, X-ray single-crystal (1M), and powder Rietveld (2O) refinements of two MDO polytypes, American Mineralogist 79, 1185-1193
    to
    Bussen I V, Men'shikov Y P, Mer'kov A M, Nedorezova A P, Uspenskaya E I, Khomyakov A P (1974) Penkvilksite, a new hydrous silicate of titanium and sodium, Doklady Akademii Nauk SSSR 217, 1161-1164
    
    Chemical formula changed from Na₄Ti₂Si₈O₂₂·5H₂O:
    Merlino S, Pasero M, Artioli G, Khomyakov A P (1994) Penkvilksite, a new kind of silicate structure: OD character, X-ray single-crystal (1M), and powder Rietveld (2O) refinements of two MDO polytypes, American Mineralogist 79, 1185-1193
Aug 2, 2014
- Penkvilksite
  - RRUFF Ideal Chemistry changed from "Na₄Ti₂Si₈O₂₂·4H₂O" to "Na₄Ti⁴⁺₂Si₈O₂₂·4H₂O"
Jul 4, 2010
- Penkvilksite
  - Mineral Comment changed from
    Fleischer M (1975) New mineral names, American Mineralogist 60, 340-341
    
    Merlino S, Pasero M, Artioli G, Khomyakov A P (1994) Penkvilksite, a new kind of silicate structure: OD character, X-ray single-crystal (1M), and powder Rietveld (2O) refinements of two MDO polytypes, American Mineralogist 79, 1185-1193
    to
    Bussen I V, Men'shikov Y P, Mer'kov A M, Nedorezova A P, Uspenskaya E I, Khomyakov A P (1974) Penkvilksite, a new hydrous silicate of titanium and sodium, Doklady Akademii Nauk SSSR 217, 1161-1164
    
    Fleischer M (1975) New mineral names, American Mineralogist 60, 340-341
    
    Redefined:
    Merlino S, Pasero M, Artioli G, Khomyakov A P (1994) Penkvilksite, a new kind of silicate structure: OD character, X-ray single-crystal (1M), and powder Rietveld (2O) refinements of two MDO polytypes, American Mineralogist 79, 1185-1193
Mar 23, 2008
- Penkvilksite
  - Mineral Display Name changed from "Penkvilksite-1M" to "Penkvilksite"
  - Mineral Comment changed from
    Merlino S, Pasero M, Artioli G, Khomyakov A P (1994) Penkvilksite, a new kind of silicate structure: OD character, X-ray single-crystal (1M), and powder Rietveld (2O) refinements of two MDO polytypes, American Mineralogist 79, 1185-1193
    to
    Fleischer M (1975) New mineral names, American Mineralogist 60, 340-341
    
    Merlino S, Pasero M, Artioli G, Khomyakov A P (1994) Penkvilksite, a new kind of silicate structure: OD character, X-ray single-crystal (1M), and powder Rietveld (2O) refinements of two MDO polytypes, American Mineralogist 79, 1185-1193
May 10, 2006
- Penkvilksite
  - New Mineral Entry
  - Mineral Display Name changed to "Penkvilksite-1M"
  - RRUFF Ideal Chemistry changed to "Na₄Ti₂Si₈O₂₂·4H₂O"
  - IMA Ideal Chemistry changed to "Na₄Ti₂Si₈O₂₂·4H₂O"