A. E. Seaman Mineral Museum

Preserving the Keweenaw’s Mineral Heritage

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“Our community began to support the local mines. The mines may now be closed, but our rich mining heritage remains. The museum preserves the minerals from these mines so that our community can see, enjoy, and learn from them.”

– Ted Bornhorst, Executive Director, A.E. Seaman Mineral Museum


Visitors of all ages learn about how minerals form, the importance of minerals in their everyday life, and more at the official Mineral Museum of Michigan.

The A. E. Seaman Mineral Museum preserves the past and the present to educate people about minerals. It is nationally and internationally recognized for the quality, depth, and breadth of its collection and for its excellent exhibits. The museum proudly showcases the splendor and beauty of minerals—nature’s masterpieces.

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During the summer of 2015, with generous support of John and Jane Matz, the museum opened its Copper Pavilion that exhibits a Guinness World Record holding 17 ton native copper slab.

The A. E. Seaman Mineral Museum is active and progressive and continually seeks ways that it can improve. By supporting the museum, you can be a part of the local mining heritage and create your own legacy.


Native copper from the Central Mine, Keweenaw County, Michigan. Arguably the finest crystallized native copper specimen.

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