Latitude: 39°45'15"N
Longitude: 105°21'25"W
Pegmatite deposit located in the NE¼ sec. 32, T.3S, R.71W., mainly on Centennial Cone, a prominent hill on private property, some 15 miles west of Golden. One main pegmatite is on the northeast flank of the cone, about 1/4 mi up the hill from where an old log barn was located.
Mineralization is a zoned pegmatite in biotite granite gneiss. Core zone: quartz; intermediate zone: quartz-albite-muscovite; outer zone: quartz-microcline-muscovite.
Workings include shallow pits.
References
Ref.: Eckel,E.B. (1997), Minerals of Colorado, updated & revised: 18-19; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 27 (Table A-1).
Mineral List
11 entries listed. 8 valid minerals.
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