- Bournonite, Sphalerite
- Small Cabinet, 5.5 x 5.0 x 2.7 cm
- Boldut Mine, Cavnic (Kapnic; Kapnik), Maramures Co., Romania
Lightly iridescent and lustrous bournonite cogwheels are aesthetically and richly piled up on the sculptural and mounded quartz-rich matrix on this fine and uncommon combination specimen from the Boldut Mine of Romania. Sphalerite and pyrite crystals are a nice compliment to this fine specimen from the Michael Schmidt and Tarnowski Collections.