Microphotographs showing the mineralogy of the stages 1 and 2 at Bonnac. (A) Coarse wolframite (Wolf) with lollingite (Lo) fractured and cemented by rhombic arsenopyrite (Asp). Secondary scheelite (Sch) pseudomorphs after wolframite. Arsenopyrite is fractured and cemented by bismuthinite (Bit) (Androl vein). (B) Cathodoluminescence view showing the relationships between lollingite (Lo), weakly deformed macrocristalline quartz (Qz1), and arsenopyrite (Asp) rhombic crystals cutting Qz1 (Costillon vein). (C) Wolframite (Wolf) and coarse hydrothermal apatite (Ap) assemblage fractured and cemented by secondary scheelite (Sch) and minor pyrite (Py) (Ferbert vein). (D) Highly sheared macrocristalline quartz (Qz1) crosscut by a second quartz generation (Qz2) (see text for further explanation). Relics of Qz1 clasts are present in the upper right part of the photograph (Ferbert vein).