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| SAMARSKITE-(Y) | (Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8 |
| Locality: Ham-Weeks Quarry, Wakefield, NH | |
| Specimen Size: 3.5 cm specimen with massive black Samarskite | |
| Environment: Granite pegmatite | |
| Field collected: Ralph Lingard | |
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