|AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Minnesota > Groutite|
|Locality:||Robert Mine, Cuyuna Range, Crow Wing County, Minnesota|
|Description:||Uncommonly large cluster of lustrous black groutite crystals in a banded formation of groutite and Mn-oxides. This specimen from the private collection an old miner at the mine. See article: Groutite From the Robert Mine in Mineral News v.2 #5.|
|Overall Size:||7.5x5x3.5 cm|
|Status:||Sold - Posted here for reference only|
|Buy similar:||Minerals from Midwest, USA > Oxide Mineralss|
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