Fig. 5

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Cassitérite magmatique disséminée dans le leucogranite albitique. (a) Cristaux automorphes (gris clair ; microscope par réflexion) ; (b) Idem (microscope par transmission) ; (c) Cristaux automorphes avec manganocolumbite (Mn-columbite) ; microscope par réflexion).

Magmatic cassiterite disseminated within albitic leucogranite. (a) Idiomorphic crystals (light grey; reflected light microscope); (b) Idem (transmitted light microscope); (c) Idiomorphic crystals with manganocolumbite (Mn-columbite; reflected light microscope).

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