Dufrenite from Ste Barbe vein, France

Dufrenite from Ste Barbe vein, Montmins mining district, Échassières, Vichy, Allier, Auvergne-Rhône-Alpes, France

Nice little specimen of dufrenite from the Ste Barbe vein, often known as 'Les Montmins'.

Typical interesting material for the area, lots of mineralisation - not all of which is identified.

A former owner labelled this piece 'Strengite and Dufrenite', but I was not able to spot any Strengite so have labelled it simply as Dufrenite.

Comes boxed with our ID label and the former owners label.