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Copper
Great Sand Bay, Eagle Harbor, Lake Superior, Michigan
close up of what appears to be an octahedral crystal but is probably a dodecahedron... (Author: John Jaszczak)

Copper
Great Sand Bay, Eagle Harbor, Lake Superior, Michigan
close up of what appears to be an octahedral crystal but is probably a dodecahedron... (Author: John Jaszczak)

Dimensions: 750 x 500
File size: 45.32 kbytes
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