Ankerite
Bullion-Columbia Mine, Keystone Gold Mining District, Pennington County, South Dakota, USA
This is a micromount specimen of ankerite from the Bullion-Columbia Mine, Keystone Gold Mining District, Pennington County, South Dakota. I acquired this specimen from the giveaway tables at the 2019 Cleveland, Ohio Micromineral Symposium.
This specimen was originally in the Hugh McCulloch collection who donated it to the Cleveland Museum of ...
© Jamison K. Brizendine