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Montmorillonite from
Tracy Mine, Negaunee, Marquette County, Michigan, USA


Locality type:Mine
Classification
Species:Montmorillonite
Formula:(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Montmorillonite data
Locality Data:Click here to view Tracy Mine, Negaunee, Marquette County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:405285
Long-form Identifier:1:3:405285:2
GUID (UUID V4):0
Nearest other occurrences of Montmorillonite
5.8km (3.6 miles) ⓘPalmer Gneiss (2), Palmer, Richmond Township, Marquette County, Michigan, USA
62.1km (38.6 miles) ⓘBoney Falls, Escanaba River, Delta County, Michigan, USA
92.4km (57.4 miles) ⓘEscanaba, Delta County, Michigan, USA
References
Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp.
 
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