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Silver sceptor crystal on copper/silver halfbreed. Caledonia Mine, Ontonagon Co. MI
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Silver crystal on copper/silver halfbreed. Caledonia Mine, Ontonagon Co. MI
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Calcite crystal on Copper wire. Osceola Mine, Houghton Co. MI
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Datolite. Lake Superior, Keweenaw Co. MI
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Datolite. Lake Superior, Keweenaw Co. MI
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Cuprite, Malachite, Chrysocolla. Allouez Mine. Keweenaw Co., MI
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Datolite, Nassau Mine, Ontonagon Co., MI
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Datolite, Winona Mine, Houghton Co., MI
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Datolite, Wyoming Exploration, Keweenaw Co., MI
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Datolite, Clark Mine, Keweenaw Co., MI
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Datolite, C&H Shaft #20, Houghton Co., MI
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Lake Superior Agate, Lake Superior, Houghton Co., MI
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Lake Superior Agate, Lake Superior, Houghton Co., MI
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Lake Superior Agate, Lake Superior, Houghton Co., MI
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Lake Superior Agate, Manitou Island, Keweenaw Co., MI
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Chrysocolla, Malachite, Allouez Mine, Keweenaw Co., MI
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