Ref.: Eckel, Edwin B. (1997), Minerals of Colorado, updated & revised: 19; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 28 (Table A-1).
A pegmatite located in N½ sec. 5, T. 4 S., R. 71 W. It is exposed by a roadcut along U.S. Highway 6 in Clear Creek Canyon, 3 mi east of the fork between U.S. 6 and the road to Black Hawk (State Highway 119). Much of the deposit has been removed by excavation for the highway, but several smaller dikes crop out on the hill above the roadcuts.
Mineralization is a zoned pegmatite structure in biotite granite gneiss.
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Map Reference: 39°44'15"N , 105°21'27"W
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Mineral List:18 entries listed. 14 valid minerals.
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