Fig. 6

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Minéralisation à Sn-W-(Nb-Ta) de la pegmatite stockscheider (photos en lumière réfléchie). (a) Cristaux automorphes de cassitérite (cs) avec wolframite lamellaire (wo) dans gangue de quartz, feldspaths et micas (gris très sombre) ; (b) Idem avec manganocolumbite (mc) ; (c) Wolframite lamellaire (wo) avec plages de scheelite (sch).
Sn-W-(Nb-Ta) minerals from stockscheider pegmatite (reflected light microscope). (a) Automorphic crystals of cassiterite (cs) with lamellar wolframite (wo) in a gangue of quartz, feldspar and micas (very dark grey); (b) Idem with manganocolumbite (mc); (c) Lamellar wolframite (wo) with scheelite (sch).
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