#86 Copper/Silver Halfbreed

Quincy Mine, Hancock, Houghton County, Michigan, USA 
4.5 x 3 x 1 cm 
$150

#87 Copper  inclusions in Calcite 

Franklin Mine, Hancock, Houghton County, Michigan, USA 
25 x 18 x 15 mm
$100

#32 Copper

Cheng Men Shan  Deposit, Jiurui Mining Dist.,
Jiujiang Co., Jiujiang Pref., Jiangxi Prov, China
$50

#149 Datolite with included Copper

Quincy Mine, Hancock, Houghton County, Michigan, USA
7.5 x 4.5 x 2 cm
$100

#96 Copper Crystals

Quincy Mine, Hancock, Houghton County, Michigan, USA 
16.5 x 16 x 4 cm (1 cm thick)
$750

#70 Copper  Crystals

Central Mine, Keweenaw County, Michigan, USA
13.5 x 8 x 1 cm
$175

#152 Copper Wire Crystal on Calcite

Osceola Mine, Osceola, Houghton County, Michigan, USA
22 x 13 x 5 mm
$35

#153 Copper Crystals

Copper Falls Mine, Copper Falls, near Eagle Harbor, Keweenaw County, Michigan, USA, Michigan, USA
3.5 x 3.0 x 1 cm
$75

#8 Copper Crystals

Lake Superior Copper District, Michigan
14 x 2.5 (at the widest) cm
$50

#163 Sheet Copper

Caledonia Mine, Ontonagon County, Michigan, USA
18 x 12.5 x 1 cm (appx. 1mm thick)
$50

#18 Copper Crystals

Lake Superior Copper District, Michigan
16 x 5 x 3 cm
$250

#156 Arsenic Bearing Copper

Isle Royale Mine, Dodgeville, Houghton County, Michigan, USA
6.5 x 5.5 x 1.5 cm; 145 g
$45

#91Copper and Silver Halfbreed
 

Copper Falls Mine, Keweenaw County, Michigan, USA
6 x 5 x 3 cm
$175

#130 Copper 

Ajo District, Pima County, Arizona, USA
28 x 20 x 1 cm
$150

#145 Copper Crystals

 
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
5.3 x 1.2 x 1 cm
$75

#162 Copper Crystals

Phoenix Mine, Phoenix, Keweenaw County, Michigan, USA
8.3 x 4.6 x 3.2 cm
$200

#159 Copper Wire Crystal on Prehnite

Osceola Mine, Osceola, Houghton County, Michigan, USA
24 x 14 x 8 mm
$45

#160 Copper Wire Crystals on Quartz

Osceola Mine, Osceola, Houghton County, Michigan, USA
23 x 13 x 19 mm
$35

#161 Copper Wire Crystals on Prehnite with Copper inclusions in Prehnite

Osceola Mine, Osceola, Houghton County, Michigan, USA
30 x 20 x 11 mm
$35

#186 Copper in Quartz vein

Butler Lode, Caldedonia Mine, Ontonagon County, Michigan
15.5 x 11.5 x 11 cm
$100