- Portada
- volume 6 (2003)
- number 3-4 - The Graulich volume
- OR NATIF, ARSÉNOPYRITE ET MINÉRAUX SECONDAIRES DANS LES QUARTZITES DEVILLIENS DE HOURT, MASSIF DE STAVELOT, BELGIQUE
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OR NATIF, ARSÉNOPYRITE ET MINÉRAUX SECONDAIRES DANS LES QUARTZITES DEVILLIENS DE HOURT, MASSIF DE STAVELOT, BELGIQUE
Abstract
ABSTRACT. Gold, arsénopyrite, mimétite, pharmacosidérite, and scorodite were observed in association with other sulphide minerals in the Cambrian quartzites of Hourt, Stavelot Massif, Belgium. The identification of these minerals is confirmed by electron microprobe analyses and by X-ray powder diffraction. The unit-cell parameters of arsénopyrite were also calculated : a = 5.742(3), b = 5.700(2), c = 5.778(2) Å and ß = 112.13(5)°. Scorodite is a new arsenate mineral for Belgium, whereas the occurrence of gold associated with arsénopyrite is observed for the first time.
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Acerca de: Pierre LEFEVRE
Laboratoire de Minéralogie, Université de Liège, Bâtiment B18, B-4000 Liège, Belgique
Acerca de: Frédéric HATERT
Laboratoire de Minéralogie, Université de Liège, Bâtiment B18, B-4000 Liège, Belgique