Sphalerite With Chalcopyrite
Rosiclare Level, North-End Denton Mine, Ozark-Mahoning, Harris Creek Dist., Illinois, USA
Cabinet, 10.0 x 7.4 x 7.0 cm
Ex. Ross Lillie
Perched aesthetically on altered limestone matrix is a cluster of "ruby jack" sphalerite crystals to 3 cm in length, which clearly exhibit smaller second generation sphalerite on the larger crystals. Brassy yellow, drusy chalcopyrite crystals festoon the sphalerite crystals. Mined in December 1984. A complex, 3-dimensional specimen, and better in person. RCL 0813.