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Silver from
Griggstown Mine (Franklin Mine), Griggstown, Somerset Co., New Jersey, USA

Description
Quality of samples:not specified / average specimens
Confirmation
Validity:Believed Valid
References
References:The Minerals of New York City & Its Environs, New York Mineralogical Club Bull., Vol. 3, No. 1, Manchester, J.G. (1931): 75.
Data
Mineral Data:Click here to view Silver data
Locality Data:Click here to view Griggstown Mine (Franklin Mine), Griggstown, Somerset Co., New Jersey, USA
Nearest other occurrences of Silver
14.1km (8.7 miles) Hopewell, Mercer Co., New Jersey, USA
14.7km (9.1 miles) New Brunswick, Middlesex Co., New Jersey, USA
18.9km (11.8 miles) Chimney Rock Quarry (Houdaille Industries Quarry; The Bound Brook Quarry; Stavola Industries Quarry), Bridgewater Township, Somerset Co., New Jersey, USA
19.1km (11.9 miles) George Drake farm, Newtown, Piscataway Township, Middlesex Co., New Jersey, USA
20.4km (12.7 miles) Green Valley, Plainfield, Somerset Co., New Jersey, USA
22.1km (13.7 miles) American Mine (Alpha Copper Mine; Bridgewater Mine; Somerville Mine; Somerville deposit), Bridgewater Township, Somerset Co., New Jersey, USA
24.0km (14.9 miles) Fields' Copper Mine (Field Mine), Warrenville, Washington Valley, Somerset Co., New Jersey, USA
24.9km (15.5 miles) Flemington Copper Mine, Flemington, Hunterdon Co., New Jersey, USA
25.7km (15.9 miles) Pluckemin, Somerset Co., New Jersey, USA
68.4km (42.5 miles) Prospect Park Quarry (Sowerbutt Quarry; Vandermade Quarry; Warren Brothers Quarry), Prospect Park, Passaic Co., New Jersey, USA
74.2km (46.1 miles) Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
77.7km (48.3 miles) Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
77.9km (48.4 miles) Whim shaft, Perkiomen Mines, Audubon, Lower Providence Township, Montgomery Co., Pennsylvania, USA
83.9km (52.1 miles) Wheatley Mines, Phoenixville Mining District, Schuylkill Township, Chester Co., Pennsylvania, USA
102.5km (63.7 miles) Sparta Mine, Ossining (Sing Sing), Westchester Co., New York, USA
103.6km (64.4 miles) Ossining (Sing Sing), Westchester Co., New York, USA
150.0km (93.2 miles) State Route 25 road cuts, Trumbull, Fairfield Co., Connecticut, USA
150.8km (93.7 miles) Old Mine Park (Lane’s Mine of Trumbull; Hubbard Mine; Long Hill Mine; Old Tungsten Mine), Long Hill, Trumbull, Fairfield Co., Connecticut, USA
154.1km (95.7 miles) Lane's [Lead and Silver] Mine (Elm Street), Monroe, Fairfield Co., Connecticut, USA
201.8km (125.4 miles) Bristol Copper Mine, Bristol, Hartford Co., Connecticut, USA
259.4km (161.2 miles) Manhan Mines (Loudville Mine; Southampton Lead Mine; Northampton Lead Mine), Easthampton, Hampshire Co., Massachusetts, USA
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