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Thunderbird Mine (Virginia Mine; Nelson Reserve On-3), Mesabi Range, St. Louis Co., Minnesota, USA

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Detailed Mineral List:

Ankerite
Formula:	Ca(Fe²⁺ ,Mg,Mn²⁺)(CO₃)₂
Reference:	U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.







Calcite
Formula:	CaCO₃
Reference:	U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.







Magnetite
Formula:	Fe²⁺Fe³⁺₂O₄
Reference:	U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.







Minnesotaite
Formula:	(Fe,Mg)₃(Si₄O₁₀)(OH)₂
Reference:	U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.






Photo: © 2008, JGW. Minnesotaite from Thunderbird Mine, Mesabi Range, St. Louis Co., Minnesota, USA
Quartz var: Chert
Reference:	U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.








Siderite
Formula:	FeCO₃
Reference:	U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

6 entries listed. 5 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Jobs in Minnesota, 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: 20th May 2011 11:03:03