| Description |
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| Comments: | Not a rare mineral from granite pegmatite. Listed by Morrill (1960) for no specific locality in Grafton and subsequently inappropriately claimed for this locality. |
| Quality of samples: | not specified / average specimens |
| Confirmation |
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|
| Validity: | Believed Valid |
| References |
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|
| References: | Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index |
| Data |
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| Mineral Data: | Click here to view Pyrrhotite data |
| Locality Data: | Click here to view Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA |