Limonite from Minnesota, USA

Limonite, etc.

Gruner prospect, Virginia, St. Louis County, Minnesota, USA

Limonite, etc.

Gruner prospect, Virginia, St. Louis County, Minnesota, USA

Limonite, etc.

Gruner prospect, Virginia, St. Louis County, Minnesota, USA


USA
Minnesota ⓘ Brown County	(1917) Useful minerals of the United States. Bulletin Vol. 624. US Geological Survey doi:10.3133/b624
Crow Wing County Cuyuna North Range Gloria mine (Donahue mine; McKensie mine; Lauretta Manganiferous Mines) ⓘ US Bureau Mines core	Institute on Lake Superior Geology Proceedings, 40th Annual Meeting, Houghton, MI, v. 40, part 4,
ⓘ Kennedy mine	USGS Prof Paper 407
ⓘ Fillmore County	(1917) Useful minerals of the United States. Bulletin Vol. 624. US Geological Survey doi:10.3133/b624
Itasca County Mesabi Range ⓘ Diamond Mine	Bill Morgenstern - Collection
ⓘ Le Sueur County	(1917) Useful minerals of the United States. Bulletin Vol. 624. US Geological Survey doi:10.3133/b624
Polk County ⓘ Fisher meteorite	Oliver Cummings Farrington (1915). Catalogue of the meteorites of North America: Memoirs of the National Academy of Sciences, Vol. 13: Washington. 545 pages.
St. Louis County Lake Vermillion ⓘ Ely Island	R&M 31:2-3 p 134
Vermilion River Mines ⓘ Spaulding prospect	Frey, B., & Hanson, A. (2008) Drill Core Evaluation of Vermilion Greenstone Belt Gold Mineralization, Northeastern Minnesota. DNR Open-File Project 373: 2008-2010
Virginia ⓘ Gruner prospect	Frank Karasti

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