Detailed information
Species
Diaphorite, Boulangerite, Siderite
Dimensions
46 x 61 x 34
mm
Locality
Vojtech Mine (Adalbert Mine) Brezové Hory (Birkenberg), Príbram Central Bohemia Region, Czech Republic
Condition
No recorded repairs
Diaphorite is an very rare silver lead antimony sulphide which is extremely rare in visible crystals. This magnificent specimen is not only display worthy, but is from the Co-Type Locality at Vojtech mine, Príbram and contains a suite of wonderful associated species to give it additional paragenetic context. Reaching 4 mm in length, the extremely well-formed dark grey metallic bladed Diaphorite crystals form a wonderful damage-free spray (8 mm across) in the centre of a finely crystallized Quartz-lined cavity. Upon the Quartz is a finely crystallized coating of steely-grey metallic matted 'hairs' of Boulangerite and a cluster of fudge-coloured Siderite crystals and a small cluster of gun-metal grey tetrahedral Tetrahedrite crystals. The matrix is dominantly fine-grained Galena and Sphalerite. Ex Professor Werner Paar Collection, it also comes with an old American Museum of Natural History card display label and a photocopy of the original museum labels and notes, which show that it was owned by Bement (Clarence Bement, 1843-1923).
