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Lost Dutchman pegmatite, Devils Head Pegmatite District, Douglas Co., Colorado, USA

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Detailed Mineral List:

Allanite-(Ce)
Formula:	{CaCe}{Al₂Fe²⁺}(Si₂O₇)(SiO₄)O(OH)
Reference:	Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 25 (Table A-1).







Biotite
Reference:	U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.








Fluorite
Formula:	CaF₂
Reference:	U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.







Microcline
Formula:	KAlSi₃O₈
Reference:	U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.







Thorite
Formula:	(Th,U)SiO₄
Reference:	U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

5 entries listed. 4 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: 29th Jun 2011 09:03:24