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Strang Pegmatite Occurrence (S. B. Strang Ralston Creek Pegmatite), Clear Creek Pegmatite Province, Jefferson Co., Colorado, USA

Latitude: 39°50'34"N
Longitude: 105°22'20"W
REF:Deposit:: SHERIDAN, D.M., AND OTHERS, 1967, GEOLOGY AND URANIUM DEPOSITS OF THE RALSTON BUTTES DISTRICT, JEFFERSON COUNTY, COLORADO: USGS PROF. PAPER 520 (INCL. GEOLOGIC MAP OF RALSTON BUTTES QUAD)
Deposit:: USBM MIN. EXAM. FILE, REPT. OF 2/2/59 (FROM O
Commodities (Major) - Mica, Quartz, Feldspar; (Minor) - REE
Development Status: Occurrence
Host Rock Unit: Idaho Springs Formation---Feldspar-Rich Gneiss
Structure: Front Range Uplift, Denver Basin, Hurricane Hill Fault System, Unnamed Syncline, Idaho Springs-Ralston Shear Zone
Host Rock: Gneiss
Tectonic Structure: Central Cordillera (Southern Ricky Mtns)

Mineral List

Biotite
Fluorite
var: Yttrofluorite

Microcline
Muscovite
Quartz


5 entries listed. 3 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Jobs in Colorado, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: 13th Jul 2011 22:18:06
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