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  • 21 Aug, 2019

  • By, Wikipedia

Ray Mine

The Ray mine is a large copper mine in Pinal County, Arizona, near the town of Kearny, in the southwestern United States. ASARCO, a subsidiary of Grupo México, currently owns the mine, which it acquired from Kennecott Copper in 1986.

The Ray mine has one of the largest copper reserves in the United States, with proven and probable reserves of 835.7 million tonnes (822,500,000 long tons; 921,200,000 short tons) of ore grading 1.73% copper, as of December 31, 2018. Copper from the Ray mine goes to the Hayden Smelter.

Old specimen of native copper (2.2 cm × 2.2 cm × 1.2 cm (0.87 in × 0.87 in × 0.47 in)) from Ray mine. Large "sail" at left is a spinel twin.

See also

References

  1. ^ "Ray mining history". Copper Area News Publishers. 2012-09-26. Retrieved 2019-10-19.
  2. ^ "Annual Report 2016" (PDF). Mexico City: Grupo México. p. 35. Retrieved 2019-04-05.
  3. ^ "Company History". Mexico City: ASARCO. Retrieved 2019-04-05.
  4. ^ Ascarza, William (November 11, 2013). "Mine Tales: Ray mining district has history of more than a century". Arizona Daily Star. Tucson, Arizona. Retrieved 2019-04-05.