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.[1]

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.[2][3][4] 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.
Allikas: https://en.wikipedia.org/wiki/Ray_mine
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