Bournonite, Pyrite
Thumbnail, 5.8 x 4.3 x 3.2 cm
Baia Sprie (Felsobanya), Maramures Co., Romania
From out of the collection of European collector Jan Buma, a fine Eastern European bournonite specimen with over a dozen sharp cogwheel crystals spread over a sulfide matrix. The bournonites measure to about 0.75 cm, and have a fine metallic luster. This piece was mined in Romania in 2000. Despite the bournonites coming out of China, good bournonites from other localities continue to be highly prized. 5.8 x 4.3 x 3.2 cm