SV340EBB: Numerous group of Bournonite crystals with very well defined faces and edges, with a marked cyclic twin, bright and with a metallic appearance, deposited on a matrix formed by a total coating of Quartz crystals, without development of the prism, and accompanied by rhombohedral Siderite crystals well defined and bright, in addition to some scalenohedral crystals of whitish Calcite. The piece is completed with a Galena crystal with clearly visible faces of the cube-octahedron.
A German classic from a mine that benefited from lead and silver and with an important pedigree, as attested by the old labels that accompany it.
Pfaffenberg Mine, Neudorf, Harzgerode mining district, Harz, Saxony-Anhalt/Sachsen-Anhalt  Germany

Specimen size: 8.4 × 6.6 × 3.1 cm = 3.31” × 2.60” × 1.22”

Main crystal size: 1 × 0.7 cm = 0.39” × 0.28”