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Montmorillonite from
Harding Mine (Harding pegmatite), Picuris District, Taos Co., New Mexico, USA

Mineral Species
Formula:(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Quality of samples:not specified / average specimens
Validity:Believed Valid
References:Jahns, R. H. and Ewing, R. C. (1977): The Harding mine, Taos County, New Mexico. Mineralogical Record, 8 (2): 115-126.
Mineral Data:Click here to view Montmorillonite data
Locality Data:Click here to view Harding Mine (Harding pegmatite), Picuris District, Taos Co., New Mexico, USA
Nearest other occurrences of Montmorillonite
254.5km (158.1 miles) A Longfellow Mine, Red Mountain District, San Juan Co., Colorado, USA
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