Mine detail: Three Musketeers Feldspar Lode

Previously called ''

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Location

Lat / long:

39.27833, -105.14696

Resource(B)

Primary:	Feldspar
Tertiary:	REE
Ore:	Microcline
Gangue:	Fluorite, Monazite

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1938
Last production ended:	1943

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 Park Half Graben
Tectonic:	Central Cordillera (Southern Rocky Mtns)

References

MRDS	D010303
DEP	10013804
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 I-1163.}{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.}{Production:: COLO. DIV. MINES ANN. OPERATOR REPTS.}
Reporter	Schwochow, Stephen D.