Galena, Sphalerite
Federal Gorden Mine, Picher Field, Tri-State District, Ottawa Co., Oklahoma, USA
Small Cabinet, 6.2 x 3.1 x 2.7 cm
A sharp galena crystal of 1.5 cm is perched on a matrix of cemented rock shards covered with dark wine-red crystals of sphalerite - a classic combo from here. The corners of the galenas show fascinating modifications, from flat bevels to these weird projections in various modifications of the cubic form. Ex. George Feist Collection.