Mine detail: Rim Pegmatite

Previously called 'Rim Prospect'

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Location

Lat / long:

38.47223, -105.33668

Resource(B)

Primary:	Feldspar
Secondary:	Beryllium, Mica
Ore:	Beryl, Microcline, Muscovite
Gangue:	Magnetite, Quartz
Discovery year:	1948

Production

Operation type:	Unknown
Production size:	None
Development status:	Occurrence

Geology

Host rock:	Migmatitic Gneiss
Host type:	Diorite,Gneiss,Pegmatite
Associated rock:	Quartz Diorite;Granodiorite (Pikes Peak Granite)
Associated type:	Diorite
Structure:	Southern Front Range, Canon City Embayment, Eightmile Park, Ne-Trending Faults
Tectonic:	Central Cordillera (Southern Rocky Mountains)

References

MRDS	D009884
DEP	10013534
Reference	{Deposit:: HEINRICH, E. W., 1948, PEGMATITES OF EIGHT MILE PARK, FREMONT COUNTY, COLORADO: THE AMERICAN MINERALOGIST, V. 33, NOS. 7-10, P. 420-448, 550-587}{Deposit:: TAYLOR, R. B., SCOTT, G. R., WOBUS, R. A. AND EPIS, R. C., 1975, RECONNAISSANCE GEOLOGIC MAP OF THE ROYAL GORGE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO: USGS MAP I-869, 1:250,000}
Reporter	Collins, Donna B.