Millerite Kaser Quarry, Ollie, Keokuk County, Iowa, ...
Description: Millerite Kaser Quarry, Ollie, Keokuk County, Iowa, USA Field of view is 3.8cm. Photo: Jim Prentiss A "cat's hair" Millerite from Jim Prentiss (http://www.mineral-forum.com/message-board/viewtopic.php?p=8866#8866) Thanks Jim!