M & W Minerals
Walter R. Kellogg
517 294 6709
mwminerals@comcast.net
Caledonia Mine, Greenland, Ontonagon County, Michigan, USA
The Gerhardite is the bright blue colored material and is mostly concetrated along the edge of the specimen. There is also present unidentified material.
4.8 x 3.8 x 2.2 cm
$35 / Reserved