| dc.contributor.author | Drábek, Milan | |
| dc.contributor.author | Hybner, Jiří | |
| dc.contributor.author | Rieder, Milan | |
| dc.contributor.author | Böhmová, Vlasta | |
| dc.date.accessioned | 2010-11-29T08:16:28Z | |
| dc.date.available | 2010-11-29T08:16:28Z | |
| dc.date.issued | 2010 | |
| dc.identifier.citation | The Canadian Mineralogist. 2010, vol. 48, no. 5, p. 1059-1068. | en |
| dc.identifier.issn | 0008-4476 | |
| dc.identifier.issn | 1499-1261 | |
| dc.identifier.uri | http://hdl.handle.net/10084/83457 | |
| dc.description.abstract | Phase relations within the system Fe–Nb–S were studied experimentally by the technique of evacuated silica glass tubes in the temperature interval 400–1000°C. The dominant field in the system is a broad solid-solution FexNbyS2 (0 < x < 0.5, 1.0 < y < 1.4) that includes the composition of the mineral edgarite. Also, it forms stable assemblages with pyrrhotite and pyrite. The iron sulfides dissolve limited amounts of Nb: pyrrhotite dissolves up to 1.13 at.% Nb, and pyrite, only 0.02 at.% Nb. We refined the crystal structure of five samples of the FexNbyS2 solid solution, and established the relation between the unit-cell volume and Fe/(Fe + Nb). The occurrence of edgarite can be expected in associations with other sulfides crystallizing under extremely low fugacity of oxygen. | en |
| dc.language.iso | Neuvedeno | en |
| dc.publisher | Mineralogical Association of Canada | en |
| dc.relation.ispartofseries | The Canadian Mineralogist | en |
| dc.relation.uri | https://doi.org/10.3749/canmin.48.5.1059 | en |
| dc.subject | phase relations | en |
| dc.subject | edgarite | en |
| dc.subject | FexNbyS2 solid solution | en |
| dc.subject | Nb sulfides | en |
| dc.subject | system Fe–Nb–S | en |
| dc.subject | crystal-structure refinements | en |
| dc.title | The system Fe–Nb–S and its geological implications | en |
| dc.type | article | en |
| dc.identifier.location | Není ve fondu ÚK | en |
| dc.identifier.doi | 10.3749/canmin.48.5.1059 | |
| dc.identifier.wos | 000283870800003 | |