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New Cornelia Mine (Ajo Mine)

Profile

Path to the site

USA / Arizona / Pima Co. / Little Ajo Mts / Ajo District / Ajo / New Cornelia Mine (Ajo Mine)

Exposure description

z.Zt. ruhender, riesiger Kupfer-(Gold-Silber-Molybdän-Zink)-Tagebau. Zur Förderung wurden ca 70 km Eisenbahnlinie spiralenförmig angelegt.

Geology

Porphyrische Kupferlagerstätte. Quarz-Monzonit und Quarz-Diorit, irreguläre Pegmatit-Zonen.

Entrance Restrictions

Bei Anmeldung bei Phelps Dodge Corp. Führungen mit Sammelerlaubnis möglich.

GPS Coordinates

New Cornelia Mine (Ajo Mine)



New Cornelia Mine (Ajo Mine)

WGS 84: 
Lat.: 32.35555555° N, 
Long: 112.865° W
WGS 84: 
Lat.: 32° 21' 20" N,
   Long: 112° 51' 54" W
Local weather information, Macrostrat geological map

Mineralienatlas short URL

https://www.mineralatlas.eu/?l=3094
Please feel free to link to this location

Shortened path specification

⚒ New Cornelia, Ajo, Little Ajo Mts, Pima Co., Arizona, US
Useful for image descriptions and collection inscriptions

Important: Before entering this or any other place of discovery you should have a permission of the operator and/or owner. Likewise it is to be respected that necessary safety precautions are kept during the visit.

Additional Functions

Images from localities (4 Images total)

New Cornelia Mine
Views (File:
1345906149
): 124
New Cornelia Mine
Seit Ende der 80er Jahre stillgelegt (Phelps Dodge). Die Förderung der Erze wurde fast ausnahmslos per Eisenbahn vollzogen. Hierzu waren in der Mine ins-gesamt 70 km Schienen spiralenförmig in die Tiefe verlegt.
Copyright: eschuhbauer; Contribution: eschuhbauer
Location: USA/Arizona/Pima Co./Little Ajo Mts/Ajo District/Ajo/New Cornelia Mine (Ajo Mine)
Image: 1345906149
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
New Cornelia Mine

Seit Ende der 80er Jahre stillgelegt (Phelps Dodge). Die Förderung der Erze wurde fast ausnahmslos per Eisenbahn vollzogen. Hierzu waren in der Mine ins-gesamt 70 km Schienen spiralenförmig in die ...

Copyright: eschuhbauer
Contribution: eschuhbauer 2012-08-25
New Cornelia Mine
Views (File:
1348513973
): 594
New Cornelia Mine
Die Mining Company Phelps Dodge war generell; hinsichtlich Sammelerlaubnis sehr tolerant.
Copyright: eschuhbauer; Contribution: eschuhbauer
Location: USA/Arizona/Pima Co./Little Ajo Mts/Ajo District/Ajo/New Cornelia Mine (Ajo Mine)
Image: 1348513973
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
New Cornelia Mine

Die Mining Company Phelps Dodge war generell; hinsichtlich Sammelerlaubnis sehr tolerant.

Copyright: eschuhbauer
Contribution: eschuhbauer 2012-09-24
New Cornelia Mine
Views (File:
1345906645
): 569
New Cornelia Mine
der Minenkomplex vom Highway bei Ajo aus
Copyright: eschuhbauer; Contribution: eschuhbauer
Location: USA/Arizona/Pima Co./Little Ajo Mts/Ajo District/Ajo/New Cornelia Mine (Ajo Mine)
Image: 1345906645
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
New Cornelia Mine

der Minenkomplex vom Highway bei Ajo aus

Copyright: eschuhbauer
Contribution: eschuhbauer 2012-08-25
New Cornelia Mine
Views (File:
1348265024
): 561
New Cornelia Mine
hier kann man die Ausmasse abschätzen
Copyright: eschuhbauer; Contribution: eschuhbauer
Location: USA/Arizona/Pima Co./Little Ajo Mts/Ajo District/Ajo/New Cornelia Mine (Ajo Mine)
Image: 1348265024
License: Usage for Mineralienatlas project only
New Cornelia Mine

hier kann man die Ausmasse abschätzen

Copyright: eschuhbauer
Contribution: eschuhbauer 2012-09-21

You find additional specimen at the Geolitho Museum

Detailed Description

aufgrund der deutlichen Erholung des Kupferpreises wird derzeit eine Wiederinbetriebnahme in Erwägung gezogen

Mineral images (65 Images total)

Malachit pseudomorph nach Azurit
Views (File:
1267358735
): 774
Malachit pseudomorph nach Azurit
Größe: 24x17x15 mm; Fundort: New Cornelia Mine, Ajo, Pima Co., Arizona, USA
Copyright: Michael Roarke; Contribution: slugslayer
Location: USA/Arizona/Pima Co./Little Ajo Mts/Ajo District/Ajo/New Cornelia Mine (Ajo Mine)
Mineral: Malachite
Encyclopedia: Pseudomorphose
Image: 1267358735
Rating: 9 (votes: 2)
License: Usage for Mineralienatlas project only
Malachit pseudomorph nach Azurit

Größe: 24x17x15 mm; Fundort: New Cornelia Mine, Ajo, Pima Co., Arizona, USA

Copyright: Michael Roarke
Contribution: slugslayer 2010-02-28
More   MLF 
Chalcotrichit
Views (File:
1108594917
): 338
Chalcotrichit
rote, nadelige Chalcotrichit-XX; Bildbreite: 2,6mm; Fundort: New Cornelia Mine (Ajo Mine), Ajo, Little Ajo Mts, Pima Co., Arizona, USA
Copyright: Dominik Schläfli; Contribution: Mineralienatlas
Location: USA/Arizona/Pima Co./Little Ajo Mts/Ajo District/Ajo/New Cornelia Mine (Ajo Mine)
Mineral: Chalcotrichite
Image: 1108594917
Rating: 5 (votes: 2)
License: Usage for Mineralienatlas project only
Chalcotrichit

rote, nadelige Chalcotrichit-XX; Bildbreite: 2,6mm; Fundort: New Cornelia Mine (Ajo Mine), Ajo, Little Ajo Mts, Pima Co., Arizona, USA

Copyright: Dominik Schläfli
Contribution: Mineralienatlas 2005-02-16
More   MF 
Kupfer
Views (File:
1267358563
): 480
Kupfer
Größe: 4,6 x 3,1 x 0,6 cm,
Fundort: New Cornelia Mine, Ajo, Pima Co., Arizona, USA
Copyright: Rob Lavinsky; Contribution: slugslayer
Location: USA/Arizona/Pima Co./Little Ajo Mts/Ajo District/Ajo/New Cornelia Mine (Ajo Mine)
Mineral: Copper
Image: 1267358563
License: Usage for Mineralienatlas project only
Kupfer

Größe: 4,6 x 3,1 x 0,6 cm,
Fundort: New Cornelia Mine, Ajo, Pima Co., Arizona, USA

Copyright: Rob Lavinsky
Contribution: slugslayer 2010-02-28
More   MF 
Ilmenit
Views (File:
1194859676
): 678
Ilmenit
FO: New Cornelia Mine, Ajo, Pima Co., Arizona, USA. Dicktafeliger braunschwarzer Kristall
Copyright: Klaus-Dieter Bausch; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A005198, Donator: Klaus-Dieter Bausch
Location: USA/Arizona/Pima Co./Little Ajo Mts/Ajo District/Ajo/New Cornelia Mine (Ajo Mine)
Mineral: Ilmenite
Encyclopedia: SammlerSteckbriefe/Münchener Micromounter/Klaus-Dieter Bausch
Image: 1194859676
License: Usage for Mineralienatlas project only
Ilmenit (SNr: A005198)

FO: New Cornelia Mine, Ajo, Pima Co., Arizona, USA. Dicktafeliger braunschwarzer Kristall

Collection: Lithothek der Münchener Micromounter
Copyright: Klaus-Dieter Bausch
Contribution: Münchener Micromounter 2007-11-12
More   MLF 
Kupfer
Views (File:
1267358695
): 599
Kupfer
Größe: 28x19x16 mm; Fundort: New Cornelia Mine, Ajo, Pima Co., Arizona, USA
Copyright: Fabre Minerals; Contribution: slugslayer
Location: USA/Arizona/Pima Co./Little Ajo Mts/Ajo District/Ajo/New Cornelia Mine (Ajo Mine)
Mineral: Copper
Image: 1267358695
License: Usage for Mineralienatlas project only
Kupfer

Größe: 28x19x16 mm; Fundort: New Cornelia Mine, Ajo, Pima Co., Arizona, USA

Copyright: Fabre Minerals
Contribution: slugslayer 2010-02-28
More   MF 

Minerals (Count: 103)

Rocks (Count: 4)

Subsidiary Pages

Reference- and Source indication, Literature

Literatur:

  • Joralemon, I.B. (1914): The Ajo copper district, Arizona, Eng. Mining J.: 98: 663.
  • Greenway, J.C. (1920): Success after failures, the story of New Cornelia Copper Company as related informally by Col. J.C. Greenway: Arizona Mining J., v. 3, no.8, 1919, S.17.
  • Allen, A.W. (1922): Ajo enterprise of the New Cornelia Copper Company [two parts]: Eng. Mining J.-Press, [Part 1] v. 113, no.22, S.952-56; [Part 2] v. 113, no.23, S.1003-08.
  • Bell, G.A. (1930): Leaching practice and costs at the New Cornelia mines of the Calumet and Arizona Mining Company, Ajo, Arizona.: U.S. Bureau of Mines Inf. Circ. I.C. 6303, 30 S.
  • Ingham, G.R. & Barr, A.T. (1932): Mining methods and costs at the New Cornelia Branch, Phelps Dodge Corporation, Ajo, Arizona, U.S. Bureau of Mines Inf. Circ. I.C. 6666, 18 S.
  • Schwartz, G.M. (1934): Paragenesis of the oxidized ores of copper, Econ. Geol.: 29: 55-75.
  • Gilluly, J. (1937): Geology and ore deposits of the Ajo quadrangle, Arizona, Arizona Bureau of Mines Bull. 141: 68-75, 79-81.
  • Gilluly, James (1938): Ajo district, in Some Arizona ore deposits: Arizona Bureau of Mines Bull. no. 145: 86-90.
  • Gilluly, J. (1942a): Mineralization of the Ajo copper district, Arizona, Amer. Min.: 27: 222-23.
  • Gilluly, J. (1942b): The mineralization of the Ajo copper district, Arizona, Econ. Geol.: 37: 297-309.
  • Gilluly, J. (1946): The Ajo mining district, Arizona, USGS PP 209.
  • Galbraith, F.W. (1947): Minerals of Arizona, Arizona Bureau of Mines Bull. 153: 16, 17, 19.
  • Schwartz, G.M. (1947): Hydrothermal alteration in the 'porphyry copper' deposits, Arizona, Econ. Geol.: 44: 253-77.
  • Gilluly, J. (1952): Geology of the New Cornelia mine, Ajo, Arizona (abstr. J. Gilluly, in Shride, A.F., et al. ed., Guidebook for field trip excursions in S Arizona, Geol. Soc. Am., Cordilleran Section Meeting, April 10-14, 1952, Tucson, Arizona: Arizona Geol. Soc., S.58-61.
  • Schaller, W.T. & A.C. Vlisidis (1958). Ajoite, a new hydrous aluminum copper silicate, Amer. Min.: 43: 1107-11. (Typ-Publ.)
  • Schwartz, G.M. (1958). Alteration of biotite under mesothermal conditions, Econ. Geol.: 53: 164-77.
  • Galbraith, F.W. & D.J. Brennan (1959). Minerals of Arizona: 70, 75, 111.
  • Hardwick, W.R. (1960): Open-pit copper mining methods at New Cornelia Branch, Phelps Dodge Corp., Pima Co., Ariz.: U.S. Bureau of Mines Inf. Circ. I.C. 7938, 83 S.
  • Hutton, C.O. & A.C. Vlisidis (1960): Papagoite, a new copper-bearing mineral from Ajo, Arizona, Amer. Min.: 45: 599-611. (Typ-Publ.)
  • Sinkankas, J. (1964): Mineralogy for Amateurs, D. Van Nostrand Co., Inc., Princeton, NJ.
  • Guillebert, C. & M.T. Le Bihan (1965): Contributions à l'étude structurale des silicates de cuivre: Structure atomique de la papagoite, Bull. Soc. Franc. Min. Crist: 88: 119-21.
  • Dixon, D.W. (1966): Geology of the New Cornelia Mine, Ajo, Arizona, in Titley, S.R., and Hicks, C.L., editors, Geology of the porphyry copper deposits, SW North America: Tucson, Univ. Arizona Press, S.123-32.
  • Mrose, M.E. & A.C. Vlisidis (1966): Proof of the formula of shattuckite, Cu5(SiO3)4(OH)2 (abs.), Amer. Min.: 51: 266-267.
  • Vlisidis, A.C. & W.T. Schaller (1967): The formula of shattuckite. Amer. Min.: 52: 782-86.
  • May, B.T. (1968): Magnetic properties of rocks associated with the New Cornelia porphyry copper deposit, Pima Co., Arizona: Tucson, Univ. Ariz., Ph.D. diss., 159 S.
  • Wadsworth, W.B. (1968): The Cornelia pluton, Ajo, Arizona: Econ. Geol.: 63(2): 101-15.
  • Keith, Stanton B. (1974): Ariz. Bureau of Geol. & Mineral Techn., Geol. Survey Branch Bull. 189, Index of Mining Properties in Pima Co., Arizona: 83 (Table 4).
  • Wadsworth, W.B. (1974): Cornelia pluton, Arizona; petrogenesis inferred from grain-transition probabilities [abs.]: Eos, Transactions, Amer. Geophys. Union: 55(4): 485.
  • Wadsworth, W.B. (1975): Petrogenetic significance of grain-transition probabilities, Cornelia Pluton, Ajo, Arizona, in Quantitative studies in the geological sciences: Geol. Soc. Amer. Memoir 142, S.257-82.
  • Evans, H.T. & M.E. Mrose (1977): The crystal chemistry of the hydrous copper silicates, shattuckite and plancheite, Amer. Min.: 62: 491-502.
  • Arizona Pay Dirt (1979): Phelps Dodge Announces Pit Expansion that will Carry Ajo Mine Through 1980's: August, 1979: 30.
  • Arizona Pay Dirt (1980): Phelps Dodge is Constructing Moly Plant at Ajo: April, 1980: 22.
  • Arizona Pay Dirt (1981): (Supplement) Ajo, in Phelps Dodge – A Copper Centennial, 1881-1981: Summer, 1981: 64-68, 70-71, 90-91, & 180-181.
  • World Mining (1981): 1977-1980 production: Sept. 1981: 50.
  • World Mining (1982): 1981 production: Sept., 1982: 70.
  • Arizona Pay Dirt (1983): Phelps Dodge Bringing Copper Mine, Mill at Ajo Back On Line: Febr., 1983: front cover & 5A.
  • Thomas, W.J. & R.B. Gibbs (1983): Famous mineral localities: The New Cornelia mine, Ajo, Arizona, Min. Rec.: 14: 283-98.
  • Anthony, J.W., et al (1995). Mineralogy of Arizona, 3rd. ed.: 103, 113, 114, 132, 137, 142, 146, 163, 166, 174, 183, 185, 190, 196, 202, 216, 220, 233, 235, 246, 272, 286, 294, 298, 312, 316, 318, 319-320, 330, 334, 341, 347, 369, 383, 399.
  • Lieber, W. (1997): Kupfer und seine Mineralien - Messethemenheft 1997 Mineralientage München, S.35.
  • Singer, D.A., Berger, V.I. & Moring, B.C. (2008): Porphyry copper deposits of the world: Database and grade and tonnage models, 2008. US Geol. Survey Open-File Rep. 2008-1155.
  • Les Presmyk: The New Cornelia Mine, Ago, Pima County, Arizona. Rocks & Minerals Vol. 99, Nr. 2 (2024) S. 108-127.
  • Lit.: thdun5

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IDs

GUSID (Global unique identifier short form) J_9GTpcXQ0-Od2GID0TvFQ
GUID (Global unique identifier) 4E46FF27-1797-4F43-8E77-61880F44EF15
Database ID 3094