Copper (ex Otto Pfordte Coll.)
Sharp crystals of copper with a great patina forming branching formations and elongated (spinel?) crystals with some matrix attached. Choice old timer from the early 1900’s or late 1800’s.
Price: $3200.00
Location: Calumet Mine, Houghton County, Michigan
Dimensions: 17.5 x 6 x 5cm
Size: Cabinet & Larger
Locality: North America