In this specimen we can enjoy different columbite crystals, one of them predominant, although there are smaller, transparent and reddish ones. The analyzes of the specimen indicate the majority presence of niobium and manganese, so it is a columbite-(Mn) (you can check analysis in pictures). The main crystal stands out for its faceting, it has a small dent without affecting the quality of the piece. It comes from the collection of Michel Jouty (1930-2016).

Size: 5.7 x 5.4 x 3.8 cm.
Main crystal: 8 x 7 mm.

Excol. Michel Jouty
Analyzed specimen with report

Specimen of beryl aquamarine variety, with good thickness and size. Very transparent, delicate bluish color, with developed prism faces and with terminal faces of the dipyramid truncated by the pinacoid. A gemmy piece.

Size: 3.5 x 3 x 2.7 cm.