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| Description | |
|---|---|
| Quality of samples: | not specified / average specimens |
| Confirmation | |
| Validity: | Believed Valid |
| References | |
| References: | Gleba, 1978. Massachusetts Mineral & Fossil Localities |
| Data | |
| Mineral Data: | Click here to view Biotite data |
| Locality Data: | Click here to view Manhan Mines (Loudville Mine; Southampton Lead Mine; Northampton Lead Mine), Easthampton, Hampshire Co., Massachusetts, USA |
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