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Sonolite from
Betts Manganese Mines (Anson Betts Mine; Plainfield Manganese Mines), Plainfield, Hampshire Co., Massachusetts, USA

Description
Quality of samples:	not specified / average specimens
Confirmation
Validity:	Believed Valid
References
References:	"Western Massachusetts Mineral Localities" by Alan Plante, Valley Geology Press, 1992.
Data
Mineral Data:	Click here to view Sonolite data
Locality Data:	Click here to view Betts Manganese Mines (Anson Betts Mine; Plainfield Manganese Mines), Plainfield, Hampshire Co., Massachusetts, USA

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