Sphalerite from Denton Mine, Hardin Co., Illinois, USA

Myriads of parallel-position sphalerite crystals form together to make larger crystals. Extreme order in what looks chaotic at first glace. From the Denton mine.
Dimensions: 6.6 x 5.5 x 5 cm
Species: Sphalerite
Locality: Denton Mine, Hardin Co., Illinois, USA