This is a great cluster of steel-coloured bournonite crystals from the contemporary classic occurrence in Les Malines District, Saint-Laurent-le-Minier. The crystals mostly present edge-on, with prism faces being the most prominent on the piece. The largest crystal measures 2.5 cm. In excellent condition - there are a couple of small chips in non-distracting places and otherwise just contacts/incomplete crystals around the edges. The lustre is almost silky metallic, with the appearance of a subtle patina. It's very hard to acquire a good bournonite for the mineral cabinet at this kind of price - I got lucky at Ste. Marie. This is a super specimen.