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

Description
Comments:Occurs in hornfels.
Colour:Pink.
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 Orthoclase data
Locality Data:Click here to view Griggstown Mine (Franklin Mine), Griggstown, Somerset Co., New Jersey, USA
Nearest other occurrences of Orthoclase
10.2km (6.3 miles) Margerum Brothers Quarry, West Windsor Township, Mercer Co., New Jersey, USA
14.1km (8.7 miles) Hopewell, Mercer Co., New Jersey, USA
41.1km (25.5 miles) Summit, Union Co., New Jersey, USA
41.9km (26.1 miles) Morristown, Morris Co., New Jersey, USA
44.1km (27.4 miles) Hartshorn Quarry, Short Hills, Millburn Township, Essex Co., New Jersey, USA
52.2km (32.4 miles) Swede's Mine (Sweed's Mine), Dover, Morris Co., New Jersey, USA
53.9km (33.5 miles) Ragged Mountain feldspar deposit, Scotts Mountain, Roxburgh, White Township, Warren Co., New Jersey, USA
55.2km (34.3 miles) Allen Granite & Construction Co. Quarry, Waterloo, Byram Township, Sussex Co., New Jersey, USA
55.7km (34.6 miles) Mt Pleasant, Rockaway Township, Morris Co., New Jersey, USA
57.3km (35.6 miles) Torne Quarry, Powerville, Boonton Township, Morris Co., New Jersey, USA
57.9km (36.0 miles) Laurel Hill (Snake Hill; Penitentiary Quarry), Secaucus, Hudson Co., New Jersey, USA
58.5km (36.4 miles) Montville Township, Morris Co., New Jersey, USA
59.3km (36.9 miles) BEMCO prospect (Charlotte Mine), Cranberry Lake, Byram Township, Sussex Co., New Jersey, USA
60.4km (37.5 miles) North Jersey Stone Co. Quarry, Cranberry Lake, Byram Township, Sussex Co., New Jersey, USA
60.4km (37.5 miles) Panther Hill Granite Co. Quarry, Whitehall, Byram Township, Sussex Co., New Jersey, USA
60.5km (37.6 miles) Garrison farm explorations, Independence Township, Jenny Jump Mountain, Warren Co., New Jersey, USA
62.8km (39.0 miles) New York - West Shore & Buffalo RR tunnel, Weehawken, Bergen Hill, Hudson Co., New Jersey, USA
66.6km (41.4 miles) Sulphur Hill Mine (Sulfur Hill Mine), Andover Township, Sussex Co., New Jersey, USA
67.2km (41.7 miles) Longcore Mine (Longcove Mine), Clearwater, Andover Township, Sussex Co., New Jersey, USA
74.4km (46.2 miles) Kibblehouse Quarry, Perkiomenville, Marlborough Township, Montgomery Co., Pennsylvania, USA
75.0km (46.6 miles) Fort George, Manhattan Island, Manhattan (New York Co.), New York City, New York, USA
75.2km (46.7 miles) Dunker Pond, Newfoundland, Passaic Co., New Jersey, USA
77.7km (48.3 miles) Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
80.4km (50.0 miles) Woodcliff Park (Woodcliff), Bergen Co., New Jersey, USA
84.4km (52.4 miles) Media, Upper Providence Township, Delaware Co., Pennsylvania, USA
84.6km (52.6 miles) Wykertown nepheline syenite intrusive, Wykertown, Frankford Township, Sussex Co., New Jersey, USA
89.0km (55.3 miles) Sussex nepheline-syenite sill, Libertyville, Wantage Township, Sussex Co., New Jersey, USA
91.0km (56.6 miles) Beemerville main nepheline-syenite mass, Libertyville, Wantage Township, Sussex Co., New Jersey, USA
91.3km (56.7 miles) Larchmont, Mamaroneck, Westchester Co., New York, USA
91.7km (57.0 miles) Glen Riddle, Middletown Township, Delaware Co., Pennsylvania, USA
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