Case 11
Copper Crystals
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
SOLD
TM19-940
Datolite
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
SOLD
TM21-1241
Calcite/Epidote
Centennial Mine, Houghton County, Michigan
Very fine miniature of epidote and quartz crystals sitting on a calcite
matrix.
6.0 x 4.3 x 3.0cm
$65
TM75-614
Datolite
Delaware Mine, Keweenaw County, Michigan
Beautiful medium-size datolite with great color and complete backside.
8.0 x 7.0 x 2.2cm
$275
TM21-1242
Copper Crystals
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
$125
TM19-941
Prehnite/Quartz
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
SOLD
TM75-615
Datolite
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
$275 pair
TM21-1243
Click on any picture to
zoom in for closer detail.