20hhgd.is ((CALCITE)), $20 MINIMUM BID, Pea Ridge Mine, Washington County, Missouri, 6 x 4 x 2.5 cm, Miniature | |
Scalenahedral Calcite crystal with thin Hematite coating giving it a dark reddish brown color. Also some small Chalcopyrite crystals on the faces of the Calcite. ex Glenn Davidson collection. |