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Beryl from
Black Pearl Mine (Black Pearl group of claims; Camp Wood Tungsten Mine), Loco Gulch, Eureka District, Yavapai Co., Arizona, USA

Description
Comments:	In veins traversing biotite granite & as blue crystals with pyrite & bismuthinite.
Colour:	Blue.
Quality of samples:	not specified / average specimens
Confirmation
Validity:	Believed Valid
References
References:	Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 134, 139; Brownell, G.M. (1959), A beryllium detector for field exploration, Econ.Geol.: 54: 1103-1114; Dale, V.B. (1961), Tungsten deposits of Gila, Yavapai, and Mohave Cos., AZ, US Bur. of Mines Inf. Circ. 8078; Staatz, M.H., et al (1965), Differences in the minor element composition of beryl in various environments, Am.Min.: 50: 1783; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 21 (Table A-1).
Associated minerals:
Associates:	Bismuthinite Pyrite
Data
Mineral Data:	Click here to view Beryl data
Locality Data:	Click here to view Black Pearl Mine (Black Pearl group of claims; Camp Wood Tungsten Mine), Loco Gulch, Eureka District, Yavapai Co., Arizona, USA

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