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Muscovite from
Las Guijas Mine group (Immense Lode; Grand Lode; General Electric Mine; General Electric group of claims; Obregon claims; Black Gold group), Las Guijas Mts, Arivaca Mining District (Las Guijas Mining District), Las Guijas & San Luis Mts, Pima Co., Arizona, USA

Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Comments:Occurs in altered Laramide granitic intrusive.
Confirmation
Validity:Believed Valid
References
References:Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 105 (Table 4); Dale, et al (1960): 102-104; Arizona Bureau of Mines file data.
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Las Guijas Mine group (Immense Lode; Grand Lode; General Electric Mine; General Electric group of claims; Obregon claims; Black Gold group), Las Guijas Mts, Arivaca Mining District (Las Guijas Mining District), Las Guijas & San Luis Mts, Pima Co., Arizona, USA
Nearest other occurrences of Muscovite
1.6km (1.0 miles) Good Enough claims Nos. 1 and 2, Good Enough Mine group (Zappia claims; Soto and Esperanza groups), Las Guijas area, Las Guijas Mts, Arivaca Mining District (Las Guijas Mining District), Las Guijas & San Luis Mts, Pima Co., Arizona, USA
10.0km (6.2 miles) Cerro Colorado Mine (Heintzelman Mine; Silver Queen Mine), Cerro Colorado Mining District, Cerro Colorado Mts, Pima Co., Arizona, USA
22.1km (13.7 miles) Unnamed Cu prospect (2), San Cayetano Mining District, San Cayetano Mts, Santa Cruz Co., Arizona, USA
23.7km (14.7 miles) Papago Chief Mine (Napoleon Mine), Baboquivari Mining District, Baboquivari Mts, Pima Co., Arizona, USA
24.7km (15.4 miles) Brick Mine, Bartlett Mountain, Oro Blanco Mining District (Ruby Mining District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
24.9km (15.5 miles) Rubiana Mine group, Oro Blanco Mining District (Ruby Mining District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
26.2km (16.3 miles) Margarita Mine group, Ruby, Oro Blanco Mining District (Ruby Mining District), Oro Blanco Mts, Santa Cruz Co., Arizona, USA
26.6km (16.5 miles) Sunrise and Sunshine Mines (Sunshine-Sunrise group of claims; Sunshine group; Malone group), Papago Mining District (Sierrita Mining District), Sierrita Mts, Pima Co., Arizona, USA
27.3km (17.0 miles) Banner Mine group (Banner Mine; Hughes Mine), Stevens Mountain, Papago Mining District (Sierrita Mining District), Sierrita Mts, Pima Co., Arizona, USA
27.8km (17.3 miles) Unnamed Cu-Mn prospect, Papago Mining District (Sierrita Mining District), Sierrita Mts, Pima Co., Arizona, USA
 
Mineral and/or Locality  
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