Chalcopyrite, Dolomite
Joplin Field, Jasper County, Missouri
This nice cabinet specimen features lots of sharp-edged chalcopyrite tetrahedrons on off-white to very pale pink dolomite. Many of the chalcopyrites have an irridescent tarnish. Collected in the early 1980’s. 
7.5 x 3.7 x 1.8 inches
19.0 x 9.4 x 4.6 cm
Item 11808