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Braden Mine (Teniente Mine), El Teniente, Rancagua, Cachapoal Province, Libertador General Bernardo O'Higgins Region, Chile

The El Teniente mine works on a porphyry copper deposit, ca. 50km E of Rancagua. Core or plug of an extinct volcano. Known for its very large gypsum crystals, including one measuring l0ft.x3 in. (3 meters x 8 cm.)

Refs.: Palache, C., Berman, H. & Frondel, C. (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, 7th. edition, Volume I: 196, 222.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1010.





Mineral List:
  • Anhydrite
  • Ankerite
  • Baryte
  • Bornite
  • Bournonite
  • Calcite
  • Chalcophyllite
  • Chalcopyrite
  • Galena
  • Gypsum
  • Lindgrenite
  • Olivenite
  • Orpiment
  • Osarizawaite
  • Pyrite
  • Realgar
  • Sphalerite
  • Sulphur
  • Tennantite
  • Tenorite
  • Tetrahedrite
  • 'Tourmaline Group'
  • Wulfenite


    23 entries listed. 22 valid minerals.

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