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Opal from
Manhan Mines (Loudville Mine; Southampton Lead Mine; Northampton Lead Mine), Easthampton, Hampshire Co., Massachusetts, USA

Mineral Species
Formula:SiO2 · nH2O
Quality of samples:not specified / average specimens
Validity:Believed Valid
References:Gleba, 1978. Massachusetts Mineral & Fossil Localities
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Manhan Mines (Loudville Mine; Southampton Lead Mine; Northampton Lead Mine), Easthampton, Hampshire Co., Massachusetts, USA
Nearest other occurrences of Opal
58.7km (36.5 miles) A Torringford, Torrington, Litchfield Co., Connecticut, USA
74.0km (46.0 miles) B Case Quarries, Portland, Middlesex Co., Connecticut, USA
74.5km (46.3 miles) C Walden Gem Quarry, Portland, Middlesex Co., Connecticut, USA
78.3km (48.6 miles) D Hale-Walker prospects, Collins Hill, Portland, Middlesex Co., Connecticut, USA
79.6km (49.5 miles) E Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA
109.5km (68.0 miles) F Iron Mine Hill quarry, Cumberland, Providence Co., Rhode Island, USA
116.5km (72.4 miles) G Aggregate Industries Quarry (Wrentham Quarry; Simeone Quarry), Wrentham, Norfolk Co., Massachusetts, USA
122.6km (76.2 miles) H Tilly Foster Iron Mine, Brewster, Town of Southeast, Putnam Co., New York, USA
126.3km (78.5 miles) I Ide's Ledge quarry, East Providence, Providence Co., Rhode Island, USA
150.9km (93.8 miles) J Crugers Emery Mine, Montrose, Cortlandt Township, Westchester Co., New York, USA
177.2km (110.1 miles) K Palermo No. 1 Mine (Palermo No. 1 pegmatite; Hartford Mine; GE Mine), Groton, Grafton Co., New Hampshire, USA
180.3km (112.0 miles) L Rhein property, Amity, Town of Warwick, Orange Co., New York, USA
199.0km (123.7 miles) M Francisco Brothers Quarry (Francisco Quarry), Great Notch, Little Falls Township, Passaic Co., New Jersey, USA
202.1km (125.5 miles) N McDowell's Quarry (Osborne and Marsellis Quarry), Upper Montclair, Montclair Township, Essex Co., New Jersey, USA
204.8km (127.3 miles) O Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
218.5km (135.8 miles) P Summit, Union Co., New Jersey, USA
230.1km (143.0 miles) Q Government Pit (Government Gravel Pits), Albany, Carroll Co., New Hampshire, USA
231.3km (143.7 miles) R Stirling Brook ("Carnelian Creek"), Warren Township, Somerset Co., New Jersey, USA
233.1km (144.8 miles) S Millington Quarry (Morris County Crushed Stone Co. Quarry; Tilcon Quarry), Bernards Township, Somerset Co., New Jersey, USA
237.5km (147.6 miles) T Dunellen, Middlesex Co., New Jersey, USA
269.4km (167.4 miles) U Margerum Brothers Quarry, West Windsor Township, Mercer Co., New Jersey, USA
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