Record details

Title
    Almandine-pyrope-grossular garnets : A method for estimating their composition using X-ray powder diffraction patterns
Statement of responsibility
    Marta Chmielová, Petr Martinec, Zdeněk Weiss
Author
    Chmielová, Marta
    Martinec, Petr, 1942-
    Weiss, Zdeněk
Language
    anglicky
Source title - serial
    European journal of mineralogy
Vol./nr.
    Vol. 9, no. 2
Pages
    p. 403-409
Year
    1997
Notes
    3 obr., 4 tab., 19 bibl.
    Zkr. název ser.: Eur. J. Mineral.
Subject group
    difrakce rentgenová
    granáty
    systém ternární
Geographical name
    Česká republika
    Ktiš (Prachatice)
    Podsedice (Litoměřice)
    Žulová (Jeseník)
Keyword
    Almandine-pyrope-grossular
    Composition
    Diffraction
    Estimating
    Garnets
    Method
    Patterns
    Powder
    Using
    X-ray
Abstract (in english)
   Calculated XRD powder patterns for several compositions in the Alm-Py-Gr ternary system were used to provide two identification diagrams for the composition of almadine-pyrope-grossular garnets. The first diagrams is based on the changes of calculate 332 (the difraction angle of the 332 reflection) and of the intensity ratio of the 332 and 420 reflections (I 332/I 420). The second one is based on the changes of calculated O 444 and of the intensity ratio I 642/I 332. Six samples of natural garnets with different compositions determined by electron microprobe analysis were selected to check the reliability of the identification diagrams
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    21. 2. 2008
Import date
    8. 8. 2012