Mineral: Sphalerite
Locality: W.L. Davis-Deardorff Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
Dimensions: 6.0 x 8.9 cm

Description: Lustrous dark brown sphalerite crystals to 2.0 cm associated with tiny quartz crystals. The Davis-Deardorff Mine was a great specimen producer in the 1940s and 1950s.

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