14hhdm.t ((CHALCOPYRITE on DOLOMITE with CALCITE)), $10 MINIMUM BID, Black Rock, Lawrence County Zinc Mining District, Lawrence Co., Arkansas, 12 x 8.5 x 3.5 cm, Cabinet | |
Larger than usual Chalcopyrite crystals cover the saddle back salmon colored Dolomite crystals. The back of specimen has a cluster of large Calcite crystals. ex Dennis McMurdie collection |