Mine detail: Devils Head Pegmatite District

Previously called ''

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Location

Lat / long:

39.26056, -105.10113

Resource(B)

Primary:	Feldspar, Quartz
Secondary:	Gemstone
Tertiary:	Beryllium, REE, Tin, Niobium (Columbium), Thorium
Ore:	Microcline, Quartz
Gangue:	Allanite, Biotite, Cassiterite, Cleavelandite, Euxenite, Fluorite, Garnet, Monazite, Parisite, Pyrochlore, Xenotime

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
First production started:	1930
Last production ended:	1970

Geology

Host rock:	Pikes Peak Granite;Pegmatite
Host type:	Granite
Associated rock:	Pikes Peak Granite;Pegmatite
Associated type:	Pegmatite,Granite
Structure:	Front Range Uplift, Pikes Peak Batholith, Rampart Range Uplift, Perry Park-Jarre Canyon Fault, Rampart Range Fault, Manitou Half Graben
Tectonic:	Central Cordillera (Southern Rocky Mtns)

References

MRDS	D010362
DEP	10107991
Reference	{Deposit:: MEEVES, H.C., AND OTHERS, 1966, RECONNAISSANCE OF BERYLLIUM-BEARING PEGMATITE DEPOSITS IN SIX WESTERN STATES: USBM IC-8298, P. 24-25.}{Deposit:: BRYANT, BRUCE, AND OTHERS, 1981, GEOLOGIC MAP OF THE DENVER 1X2 QUADRANGLE, NORTH-CENTRAL COLORADO: USGS MAP}{Deposit:: HEINRICH, E.W., 1957, PEGMATITE PROVINCES OF COLORADO: COLORADO SCHOOL MINES QUART, V. 52, NO. 4, P. 1-22.}{Deposit:: TRIMBLE, D.E., AND MACHETTE, M.N., 1979, GEOLOGIC MAP OF THE COLORADO SPRINGS-CASTLE ROCK AREA, FRONT RANGE URBAN CORRIDOR, COLORADO: USGS MAP I-857-F. &&}{Deposit:: HANLEY, J.B., AND OTHERS, 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-44: USGS PROF. PAPER 227, P. 31-32.}
Reporter	Schwochow, Stephen D.