01 – Wolframite in quartz – Bourg-Blanc (29)

02 – Wolframite in quartz –Montbelleux (35)

03 – Cassiterite and wolframite – Plouguin (29)

04 – Cassiterite in quartz – La-Villeder (56)

05 – Greisen with cassiterite – Gouesnou (29)

06 – Arsenopyrite on Apatite (phosphate) – Coray (29)

07 – Molybdenite in pegmatite – Ploumanach (22)

08 – Wolframite – Plogonnec (29)

09 – Greisen with Molybdenite – Coray (29)

10 – Molybdenite in pink granite – Trégastel (22)

11 – Molybdenite in pink granite – Perros-Guirrec (22)

12 – Molybdenite in pink granite – Jersey

13 – Molybdenite in pegmatite – Jersey

The Wolframite is an ore of tungsten : (FeMn) WO4

The Cassiterite is an ore of tin : SnO2

The Molybdenite is molybdenum disulphide: MoS2