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Opal from
Reef Mine (Tungsten Reef Mine; Exposed Reef Mine; Sitric Mine; Reef group of claims), Carr Canyon, Cochise County, Arizona, USA

Locality type:Mine
Formula:SiO2 · nH2O
Confirmation Methods:SEM-EDS
References:"The Accidental Pocket" talk presented by Robert E. Walstrom at 2012 NCMA meeting.
Specimen source:From Other
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Reef Mine (Tungsten Reef Mine; Exposed Reef Mine; Sitric Mine; Reef group of claims), Carr Canyon, Cochise County, Arizona, USA
Nearest other occurrences of Opal
21.9km (13.6 miles) Eagle deposit, Redrock Mining District, Santa Cruz Co., Arizona, USA
24.2km (15.0 miles) Lyle Creek Diatomite deposits (Huachuca deposits), Huachuca Mountains Northwestern foothills, Redrock Mining District, Santa Cruz Co., Arizona, USA
27.7km (17.2 miles) Gallagher Vanadium & Rare Minerals Corporation Mine (Gallagher vanadium property; Bradsher Mine; Stella Mine; Vogel Mine; Buena Vista Mine), Cochise County, Arizona, USA
33.6km (20.9 miles) Montezuma Mine, Cochise County, Arizona, USA
36.6km (22.7 miles) Lucky Cuss Mine (Escondido Mine; Escondido claims; McCann Mine; Wedge Mine), Cochise County, Arizona, USA
37.4km (23.2 miles) Grand Central Mine, Contention-Grand Central Mine group, Cochise County, Arizona, USA
49.1km (30.5 miles) Curtis Diatomite deposit (Curtiss Diatomite deposit), Curtis, Cochise County, Arizona, USA
52.5km (32.6 miles) Post Ranch deposit, Post Ranch, Cochise County, Arizona, USA
53.5km (33.3 miles) Saint David area, Cochise County, Arizona, USA
58.1km (36.1 miles) Festerling Mine (Elsicor Mine; Cora Mine), Black Diamond Peak, Middle Pass Mining District, Cochise County, Arizona, USA
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