Record details

    K-poor meurigite from the Kněžská hora quarry near Těškov, western Bohemia, Czech Republic
Statement of responsibility
    Jiří Sejkora, Pavel Černý, Jiří Čejka, Jiří Frýda, Petr Odruš
    Čejka, Jiří
    Černý, Pavel
    Frýda, Jiří
    Odruš, Petr
    Sejkora, Jiří, 1968-
Source title - serial
    Neues Jahrbuch für Mineralogie. Monatshefte
    No. 6
    p. 264-278
    2 fot., 3 diagr., 4 tab., 12 bibl.
    Zkr. název ser.: Neu. Jb. Mineral., Mh.
Subject group
    chemismus minerálů
    křivoklátsko-rokycanské pásmo
    lokalita mineralogická
    mineralogie topografická
    mřížkové parametry
Geographical name
    Těškov (Rokycany)
    USA-New Mexico
Abstract (in english)
   The rare mineral meurigite was identified at the quarry Kněžská hora near Těškov, western Bohemia, Czech Republic. Meurigite forms there elongated tabular up to flattened acicular crystals, conglomeration of tiny fibres, soft hemispherical aggregates and crusts growing in druse cavities and fissures of quartz gangue. It has light wax yellow colour, some with lemon tint. Associated minerals are: dufrénite, strengite and cacoxenite. Meurigite from Kněžská hora is monoclinic, a=29.33(1), b=5.246(2), c=18.264(7) A, ß=109.40(2)°, probably with primitve unit cell. The new X-ray powder pattern and unit cell parameters for meurigite from type locality (Santa Rita mine) are given, too. When compared with meurigite from type locality, meurigite from Kněžská hora is K-poor and (CO3)2- rich phase. Its empirical formula is K0.57(Fe6.654Al0.50)ń7.15(PO4)5.23(CO3)0.81(OH)4.71 . 6,95H2O. The infrared spectra and thermogravimetric analysis of the sample studied are given
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    16. 4. 2008
Import date
    8. 8. 2012