Copper replacing Agate - image 1

Copper replacing Agate

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A. E. Seaman Mineral Museum
0 for sale
Copper replacing agate, 3.5 cm, from the Wolverine #2 mine, Houghton County, Michigan. These unusual agates, unique to the Keweenaw, were discovered only recently. Photo by J. Jaszczak and C. Stefano.

Product details

Species
Agate, CopperAbout Agate →
SizeMiniature
Dimensions3.5 cm
Added on02/13/2026
Locality
USA, Michigan, Houghton County
Publications
  • Mineralogical Record Mineral Collections In American Midwest page 210

Learn more

Agate Laguna
Mineral guide
Learn about Agate
vivid fortification banding, glow colors, rarity of classic pockets, highlighting Ojo Laguna locality, value, and care tips.
Regional guide
Agate from Houghton County
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