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Grunerite from
Portsmouth Mine, Cuyuna North Range, Crow Wing County, Minnesota, USA


Locality type:Mine
Classification
Species:Grunerite
Formula:◻Fe22+Fe52+(Si8O22)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Grunerite data
Locality Data:Click here to view Portsmouth Mine, Cuyuna North Range, Crow Wing County, Minnesota, USA
Data Identifiers
Mindat Occurrence Record ID:247811
Long-form Identifier:1:3:247811:1
GUID (UUID V4):0
Nearest other occurrences of Grunerite
5.3km (3.3 miles) ⓘMilford Mine, Cuyuna North Range, Crow Wing County, Minnesota, USA
References
USGS Prof Paper 407
 
and/or  
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