20hhdd.is ((CALCITE, MARCASITE)), $25 MINIMUM BID, Lafarge Quarry, Bauffalo, Scott County, Iowa, 10 x 6 x 3.5 cm, Cabinet | |
White opaque Calcite crystals on a base of Marcasite. Bottom is sawn flat to display. ex Glenn Davidson collection. ex Lavinsky mineral auctions specimen, ex Trimingham collection |