Category:Native copper in calcite crystals (Mesoproterozoic mineralization age; Quincy Mine, Keweenaw Peninsula, Michigan)

Media in category "Native copper in calcite crystals (Mesoproterozoic mineralization age; Quincy Mine, Keweenaw Peninsula, Michigan)"

The following 6 files are in this category, out of 6 total.

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  Native copper in calcite crystal (late Mesoproterozoic mineralization age, 1.05-1.06 Ga; Quincy Mine, Hancock, Keweenaw Peninsula, Upper Peninsula of Michigan, USA) 5 (17300587602).jpg 3,007 × 2,891; 3.62 MB
  
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  Native copper in calcite crystals (late Mesoproterozoic mineralization age, 1.05-1.06 Ga; Quincy Mine, Hancock, Keweenaw Peninsula, Upper Peninsula of Michigan, USA) 3 (17114677618).jpg 3,265 × 2,619; 3.33 MB
  
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  Native copper in calcite crystals (late Mesoproterozoic mineralization age, 1.05-1.06 Ga; Quincy Mine, Hancock, Keweenaw Peninsula, Upper Peninsula of Michigan, USA) 4 (17114871330).jpg 3,916 × 2,667; 3.9 MB
  
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  Native copper in calcite crystals (late Mesoproterozoic mineralization age, 1.05-1.06 Ga; Quincy Mine, Hancock, Keweenaw Peninsula, Upper Peninsula of Michigan, USA) 6 (16679961024).jpg 3,232 × 2,774; 3.82 MB
  
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  Native copper in calcite crystals (late Mesoproterozoic mineralization age, 1.05-1.06 Ga; Quincy Mine, Hancock, Keweenaw Peninsula, Upper Peninsula of Michigan, USA) 8 (17145478610).jpg 2,659 × 2,659; 4.98 MB
  
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  Native copper in calcite crystals (late Mesoproterozoic mineralization age, 1.05-1.06 Ga; Quincy Mine, Hancock, Keweenaw Peninsula, Upper Peninsula of Michigan, USA) 9 (17125600707).jpg 3,331 × 2,681; 6.19 MB