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Gypsum from
Blue Ball Stone Co. Quarry (Showalter Quarry), Blue Ball, Earl Township, Lancaster Co., Pennsylvania, USA

Locality type:Quarry
Classification
Species:Gypsum
Formula:CaSO4 · 2H2O
Confirmation
Validity:Believed Valid
References
References:Mineralogy of Pennsylvania 1966-1976; Smith, Robert C. II, pgs 242-47
Data
Mineral Data:Click here to view Gypsum data
Locality Data:Click here to view Blue Ball Stone Co. Quarry (Showalter Quarry), Blue Ball, Earl Township, Lancaster Co., Pennsylvania, USA
Nearest other occurrences of Gypsum
17.9km (11.1 miles) Jones Mine, Morgantown, Caernarvon Township, Berks Co., Pennsylvania, USA
26.0km (16.2 miles) Keystone Trap Rock Quarry, Cornog, Wallace Township, Chester Co., Pennsylvania, USA
29.0km (18.0 miles) French Creek Mines, St. Peters, Warwick Township, Chester Co., Pennsylvania, USA
33.9km (21.1 miles) Cornwall Mines (Cornwall Iron Mine), Cornwall Borough (Cornwall), Lebanon Co., Pennsylvania, USA
59.4km (36.9 miles) Codorus Stone & Supply Co. Quarry, Emigsville, East Manchester Township, York Co., Pennsylvania, USA
87.3km (54.2 miles) Mount Pisgah, Jim Thorpe (Mauch Chunk), Carbon Co., Pennsylvania, USA
90.6km (56.3 miles) Meckley's Quarry, Mandata, Northumberland Co., Pennsylvania, USA
98.1km (61.0 miles) Bare Hills Copper Mine (Smith Avenue Copper Mine), Bare Hills, Baltimore Co., Maryland, USA
98.3km (61.1 miles) Sherrer Quarry (C.K. Williams & Co. Quarry; Williams Quarry), C.K. Williams Quarry complex (Williams and Company Rock Quarry), Chestnut Hill (College Hill; Lafayette Hill; Mount Lafayette; Paxinosa Ridge), Easton, Northampton Co., Pennsylvania, USA
 
Mineral and/or Locality  
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