- Chalcopyrite, Dolomite, Calcite
- Mid-Continent Mine, Treece, Picher Field, Tri-State District, Cherokee Co., Kansas, USA
- Cabinet, 12.0 x 9.7 x 4.3 cm
Harold collected this in 1965 on some of the still-accessible portions of the old Tri-State District mining areas. It has shapr, pyramid-looking crystals of chalcopyrite to about 7mm, perched on pastel pink, curving dolomite crystals. Fine calcite crystals are on the back of the plate. This is classic for the district. Ex. Harold Urish Collection.