Quick Search:    advanced search

GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help

This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Web of Science (3) Citing Articles via Google Scholar Google Scholar Articles by HATERT, F. Search for Related Content GeoRef GeoRef Citation

Occurrence of sulphides on the bornite-idaite join from Vielsalm, Stavelot Massif, Belgium

Laboratoire de Minéralogie, Université de Liège, B-4000 Liège, Belgium. e-mail: fhatert{at}ulg.ac.be

Sulphides with chemical compositions between idaite and bornite have been identified from several quartz veins crosscutting Ordovician schists in Vielsalm, Belgium. Idaite is an oxidation product of bornite, and occurs in the more oxidised parts of the quartz veins. The alteration sequence bornite "anomalous bornite" idaite is observed, associated with the growth of chalcopyrite lamellae parallel to the {100} and {111} directions of precursor bornite. Electron microprobe analyses indicate a chemical composition significantly enriched in Cu, when compared with the ideal composition of idaite, Cu₃FeS₄, as well as a progressive compositional evolution from bornite to idaite. The X-ray powder pattern is indexed in the space group I2m, similar to that of stannite, and gives the unit-cell parameters a = 5.279(4) and c = 10.47(2) Å.

Key-words: idaite, Cu₃FeS₄, stannite structure, Vielsalm, Stavelot Massif, Belgium.

This article has been cited by other articles:

				F. Hatert TRANSFORMATION SEQUENCES OF COPPER SULFIDES AT VIELSALM, STAVELOT MASSIF, BELGIUM Can Mineral, April 1, 2005; 43(2): 623 - 635. [Abstract] [Full Text] [PDF]