Groutite from Minnesota, USA - image 1
Photo by Laszlo Kupi Fine Mineral Photography

Groutite from Minnesota, USA

Groutite crystals on matrix, 3.2 cm, from the Robert mine, Crow Wing County, Minnesota. Ex Dan Ehrling collection. Photo by László Kupi.

Product details

SpeciesGroutite
SizeMiniature
Dimensions3.2 cm
Added on03/26/2026
LocalityUSA, Minnesota
Publications
  • Mineralogical Record The Kevin Brown Collection page 114
Current owner
Kevin Brown
Kevin Brown
Parker, TX
Member since 2026
Previous owners
DateCollectorAcquisition price
—Dan EhrlingNot disclosed

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Groutite
Mineral guide
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Regional guide
Groutite from Minnesota
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Locality guide
Minnesota
to iron-range minerals (groutite, goethite, hematite) in dark specimens, with historic mining heritage and collector appeal.