Northwestern #3 Mine, Keweenaw County, Michigan
Superb example of cubic copper crystals. The large cube at one end
is hoppered. See photo.
2.8 x 1.3 x 0.9cm
Flintsteel Mine, Ontonagon County, Michigan
Great color with a white, lacy border. Perfect condition front and back.
5.0 x 3.7 x 1.9cm
Centennial Mine, Houghton County, Michigan
Very fine miniature of epidote and quartz crystals sitting on a calcite
6.0 x 4.3 x 3.0cm
Delaware Mine, Keweenaw County, Michigan
Beautiful medium-size datolite with great color and complete backside.
8.0 x 7.0 x 2.2cm
Lake Superior Copper District, Michigan
Outstanding crystallization all around this fine miniature copper. Appears to come
from a fissure mine, most likely the Phoenix.
3.8 x 5.5 x 3.7cm
Franklin Mine, Houghton County, Michigan
Excellent small cabinet combo of quartz crystals sitting on green prehnite. Tiny copper
crystals are also present. Ex. Robert Nowakowski Collection #RN126.
8.2 x 6.5 x 1.9cm
Caledonia Mine, Ontonagon County
Super large pair with deep color that we
donated for the Seaman Museum Auction
back in 1999. Recently bought the
collection this pair had gone into.
6.7 x 5.6 x 2.6cm
Click on any picture to
zoom in for closer detail.