Record details

Title
    The system Fe-Nb-S and its geological implications
Author
    Böhmová, Vlasta
    Drábek, Milan
    Hybler, Jiří
    Rieder, Milan
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Canadian Mineralogist
Vol./nr.
    Roč. 48, č. 5
Pages
    10
Year
    2010
Thesaurus term
    phase relations, Nb sulfides, Fe-Nb-S system
Keyword
    Fe-Nb-S
    Geological
    Implications
    System
Abstract (in english)
   hase relations within the Fe-Nb-S system were studied experimentally by the technique of evacuated silica glass tubes in the temperature interval 400 - 1000 ?C. Dominant in the system is a broad solid solution FexNbyS2 (x = 0 - 0.5, y = 1.0 - 1.4) that includes the composition of the mineral edgarite and forms stable assemblages with pyrrhotite and pyrite. Iron sulfides dissolve limited amounts of Nb: pyrrhotite dissolves up to 1.13 at. % Nb and pyrite only 0.02 at % Nb. The occurrence of edgarite can be expected in associations with other sulfides crystallizing under extremely low oxygen fugacity.
Contributor
    Česká geologická služba
Contributor code
    ČGS (RIV)
Source format
    R
Import date
    15. 10. 2014