Sphalerite with Chalcopyrite, Dolomite

specimen number:
3331638

location:
Baxter Springs, Tri-State District, Kansas, USA

description:
Sharp old-timers showing semi lustrous black sharply twinned crystals of sphalerite to almost 4.0 cm across on a matrix of crystallized dolomite and chalcopyrite. Shows nicely all around, this is in very fine condition with just minimal cleaving along the lower left edge of the piece out of view when displayed properly.

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