20btrm.tr ((CALCITE on MARCASITE)), $65 MINIMUM BID, Blackstone Mine, Shullsburg, Wisconsin, 6 x 6 x 6 cm, Miniature | |
Aesthetic Lustrous undamaged Calcite specimen with terminated mounds of Marcasite from Shullsburg, Wisconsin. Fine specimen from a desirable locality. ex A.E.Seaman Mineral Museum |