Minas Ragra Explained

Minas Ragra
State/Province:	Pasco Region
Country:	Peru
Products:	Vanadium
Opening Year:	1906
Closing Year:	1955

The Minas Ragra was a large vanadium mine in the Pasco Region of Peru. The deposit was discovered by a United States Geological Survey expedition on November 20. 1905.^[1] Members of this expeditions were Donnel Foster Hewett and José J. Bravo In this deposit the mineral patrónite was first discovered by a member of the expedition Antenor Rizo-Patron.^[2] A mine was established in very short time by the Vanadium Corporation of America. By 1914 75% of the world vanadium ore production was coming from the Minas Ragra in Peru, making the mine the world leading producer of vanadium.^[3] With the production of vanadium as side product of uranium mining from carnotite the mine had to close in 1955.

See also

• Book: Lluis Fontbote. G. Christian Amstutz. Miguel Cardozo. Esteban Cedillo . Jose Frutos . Stratabound Ore Deposits in the Andes. 27 November 2013 . Springer Science & Business Media . 978-3-642-88282-1. 595.
• Vanadium lagerstätte Mina Ragra in Peru. Berichte der Naturforschenden Gesellschaft zu Freiburg I. Br . 1951 . DWI. Erwin F.. Trefzger. de.
• Book: Phillip Maxwell Busch. Vanadium: A Materials Survey. 1961. U.S. Department of the Interior, Bureau of Mines.
• Engineering and Mining Journal. The Story of Mina Ragra. January 1947. McGraw Hill Publishing Company . 59.

References

-10.8596°N -76.572°W

Notes and References

1. Engineering and Mining Journal . A new occurrence of vanadium in Peru. 1906 . 82 . 9 . 385 . Donnel Foster . Hewett.
2. Hillebrand. W. F.. The Vanadium Sulphide, Patronite, and ITS Mineral Associates from Minasragra, Peru. Journal of the American Chemical Society. 29. 7. 1907. 1019–1029. 0002-7863. 10.1021/ja01961a006.
3. Fischer. Siegfried. Uranium and Vanadium . 1914 . Early Publications of the Lehigh Faculty . Paper 293 .