page_title: Calumetite
hierarchical_section_title: Calumetite
caption_attribution_description: English: Calumetite from the Akmeek No. 2 Mine in Keweenaw County, Michigan. Held in the A. E. Seaman Mineral Museum.
context_page_description: Calumetite is a natural rarely occurring mineral. It was discovered in 1963 at the Centennial Mine near Calumet, Michigan, United States. Calumetite was first discovered along with anthonyite. It has a chemical formula of Cu
  ₂•2.
context_section_description: Calumetite is a natural rarely occurring mineral. It was discovered in 1963 at the Centennial Mine near Calumet, Michigan, United States. Calumetite was first discovered along with anthonyite. It has a chemical formula of Cu(OH,Cl)
  ₂•2(H
  ₂O).
caption: Calumetite from the Akmeek No. 2 Mine in Keweenaw County, Michigan.
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