Mine detail: Hyatt Ranch Mine

Previously called ''

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Location

Lat / long:

40.4597, -105.35337

Resource(B)

Primary:	Feldspar, Beryllium, Mica
Tertiary:	Uranium, Lithium, Bismuth, Phosphorus-Phosphates
Ore:	Beryl, Muscovite
Gangue:	Albite, Apatite, Bertrandite, Bismuthinite, Cleavelandite, Garnet, Purpurite, Torbernite, Tourmaline, Triphylite, Uraninite
Orebody form:	LENTICULAR
Discovery year:	1936

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
First production started:	1936
Last production ended:	1948

Geology

Host rock:	Metasedimentary Rocks--Quartz-Mica Schist;Pegmatite
Host type:	Tonalite,Mica Schist
Associated rock:	Pegmatite;Tonalite (Quartz Diorite)
Associated type:	Tonalite,Pegmatite
Structure:	Front Range Uplift, Thompson Canyon Fault, Mt Olympus Batholith, Ne-Trending Folds
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Fe Oxidation; Alteration Of Bi And U Minerals

References

MRDS	D010387
DEP	10013857
Reference	{Deposit:: THURSTON, W.R., 1955, PEGMATITES OF THE CRYSTAL MOUNTAIN DISTRICT, LARIMER COUNTY, COLORADO: USGS BULL. 1011, 185 P., 13 PLS.}{Deposit:: HANLEY, J.B., AND OTHERS, 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-1944: USGS PROF. PAPER 227, P. 99-102.}{Deposit:: MEEVES, H.C., AND OTHERS, 1966, RECONNAISSANCE OF BERYLLIUM-BEARING PEGMATITE DEPOSITS IN SIX WESTERN STATES: USBM IC-8298, P. 30.}{Deposit:: GILKEY, M.M., 1960, HYATT RANCH PEGMATITE, LARIMER COUNTY, COLO.: USBM RI-5643, 18 P. & &}{Deposit:: BRADDOCK, W.A., AND OTHERS, 1970, GEOLOGIC MAP OF THE DRAKE QUADRANGLE, LARIMER COUNTY, COLORADO: USGS MAP GQ-829.}{Production:: HANLEY AND OTHERS, 1950; THURSTON, 1955}
Reporter	Schwochow, Stephen D.