| PLUMBOPYROCHLORE | (Pb,Ca,Y,U)2-x(Nb,Ta,Ti)2O6(OH,O) |
| Locality: N. Sugarloaf Mtn., Bethlehem, NH | |
| Specimen Size: 1 mm pale-yellow, octahedral, Plumbopyrochlore crystal, partially obscured. | |
| Environment: Miarolitic cavity in Conway granite | |
| Field collected: Tom Mortimer | |