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Chalcedony from
El Tiro Mine (El Tiro pit; El Tiro open pit; Red Rock group), Silver Bell Mine, Mineral Mountain, Silver Bell Mining District, Silver Bell Mts, Pima Co., Arizona, USA

Locality type:Mine
Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Comments:Occurs as clear, nearly transparent material of beautiful color.
Colour:Emerald-green
Confirmation
Validity:Believed Valid
References
References:Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 85.
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view El Tiro Mine (El Tiro pit; El Tiro open pit; Red Rock group), Silver Bell Mine, Mineral Mountain, Silver Bell Mining District, Silver Bell Mts, Pima Co., Arizona, USA
Nearest other occurrences of Chalcedony
27.8km (17.3 miles) Miller Agate deposit (Sawtooth Agate deposit), Wildcat Peak area, Ironwood Forest National Monument, Pinal Co., Arizona, USA
41.0km (25.5 miles) Northern Tucson Mountains Agate deposit, Tucson Mts, Pima Co., Arizona, USA
45.6km (28.3 miles) Unnamed Cu prospect 101-12, Amole Mining District, Tucson Mts, Pima Co., Arizona, USA
46.2km (28.7 miles) Tucson Mts, Pima Co., Arizona, USA
96.4km (59.9 miles) Christmas claims, Redington Mining District, Santa Catalina Mts, Pima Co., Arizona, USA
 
Mineral and/or Locality  
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