Mottramite on Vanadinite, M’Fouati, Congo.


These are black mottramite crystals finely crystallized on large crystals sometimes automorphic, and red vanadinite.

Rare and very good for the area, but not perfect (many breaks)!

From the M’Fouati deposit in western Congo.

Here is a video of this specimen of mottramite on vanadinite from Mfouati, Congo :