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Gypsum from
Farncomb Hill, French Gulch, Breckenridge Mining District, Summit Co., Colorado, USA

Locality type:Hill
Classification
Species:Gypsum
Formula:CaSO4 · 2H2O
Confirmation
Validity:Believed Valid
References
References:USGS Professional Paper 75
Data
Mineral Data:Click here to view Gypsum data
Locality Data:Click here to view Farncomb Hill, French Gulch, Breckenridge Mining District, Summit Co., Colorado, USA
Nearest other occurrences of Gypsum
19.7km (12.3 miles) Russia Mine, Mount Lincoln, Alma Mining District, Park Co., Colorado, USA
22.5km (14.0 miles) Climax Mine (Climax Open Pit Mine), Climax, Climax Mining District, Lake Co., Colorado, USA
31.4km (19.5 miles) Payrock Mine, Illinois Mine, Georgetown District, Clear Creek Co., Colorado, USA
33.1km (20.6 miles) Henderson Mine, Dailey Mining District (Jones Pass Mining District), Clear Creek Co., Colorado, USA
37.8km (23.5 miles) Wolftone Mine, Carbonate Hill, Leadville, Lake Co., Colorado, USA
38.0km (23.6 miles) Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle Co., Colorado, USA
38.0km (23.6 miles) Eagle Mine (New Jersey Zinc Eagle Mine; Gilman Mine; Wilkesbarre shaft; Newhouse tunnel; Little Chief Mine; Iron Mask Mine; Belden Mine; Black Iron Mine), Gilman, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle Co., Colorado, USA
46.0km (28.6 miles) Belcher, Nevada, Gilpin Co., Colorado, USA
49.9km (31.0 miles) Quartz Hill, Central City Mining District (Central Mining District), Gilpin Co., Colorado, USA
70.4km (43.8 miles) Schwartzwalder Mine (Ralston Creek Mine), Ralston Buttes Mining District, Jefferson Co., Colorado, USA
 
Mineral and/or Locality  
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