Manganite

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Manganite crystals, 9cm, from the Robert mine, Cuyuna Range. Seaman Museum specimen. Photo by Chris Stefano.

Product details

SpeciesManganite
Added on02/13/2026
LocalityUSA, Minnesota
Publications
  • Mineralogical Record 56 4 page 480

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Manganite
Mineral guide
Learn about Manganite
black metallic MnO(OH) with steel-gray luster and crisp, striated crystals; sought for large, lustrous specimens from Ilfeld and Kalahari Field.
Regional guide
Manganite from Minnesota
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