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1.75” Native Copper Crystals w Quartz Specimen - Keweenaw, Michigan
1.75” Gorgeous Solid Copper Nugget Naturally Encased in Epidote & Quartz - Mich
1.1 oz Pretty Copper Nugget w Natural Quartz & Green Epidote - Keweenaw Michigan
7.5 Inch Black Tenorite Coated Copper Crystal Group - Adventure Mine, Michigan
Colorful Datolite w Thick Copper-Included Banding - Ridge Mine, Ont. Co Michigan
0.8” Small Copper Chisel Chip w Natural Hole - Cliff Mine, Keweenaw, Michigan
2” Native Copper Nugget w Green Epidote & Chlorite Matrix - Keweenaw, Michigan
0.7oz Native Copper Nugget prospected from Keweenaw, Michigan
1LB 3.6oz Hefty Solid Copper Nugget w Natural Bluish Matrix - Keweenaw, Michigan
1.8” Flat Solid Native Copper Nugget w Dark Green Chlorite Matrix - Keweenaw, MI
5 Piece Lot of Copper Chisel Chips 2.5-5” - Cliff Mine, Keweenaw, Michigan
5.3oz 12 Piece Lot of Copper Nuggets w Colorful Matrix - Keweenaw, Michigan
2.7” Green Prehnite w Copper Crystals & Basalt - Iroquois Mine, Keweenaw, Mich
Huge 12.5 Inch Native Sheet Copper Specimen w Perfect Striations - White Pine MI
Fantastic Golden Mohawkite Slab Algodinite Domeykite, Mohawk, Keweenaw, Michigan
1lb 2.9oz Big Razor Sharp Native Copper w Calcite-Casting- Quincy Mine, Michigan
Grand Rapids Mining and Smelting Co Michigan 0120
Awesome Dendritic Copper Crystal Group- Mohawk Mine, Keweenaw, Michigan
Beautiful Peach Colored Datolite - Quincy Copper Mine, Michigan
Neat Curved Glacial Gloat Copper Nugget prospected from Keweenaw, Michigan
Pink Quartz Crystal Group w Green Epidote - Osceola Copper Mine, Michigan
Gorgeous Dark Red Datolite Specimen - Delaware Mine, Keweenaw, Michigan
Calumet and Hecla Purple Mi
Winona Copper Co Brown Certificate Houghton Mi
