Malachite from
New Cornelia Mine (Ajo Mine), Ajo, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA

New Cornelia Mine (Ajo Mine), Ajo, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA
© 2001 John H. Betts

Description
Comments:	Most common weathering product among the Cu minerals. In concentric structures with azurite & quartz in vugs & covering the outside of porous nodules of cuprite, which, in turn, surround copper; veinlets and coating joint surfaces; commonly coated by chrysocolla, tenorite or azurite. Alters to, and is encrusted by chrysocolla.
Quality of samples:	not specified / average specimens
Confirmation
Validity:	Believed Valid
References
References:	Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 286, 298; Gilluly, J. (1946), The Ajo mining district, Arizona, USGS PP 209: 92; Schwartz, G.M. (1934), Paragenesis of the oxidized ores of copper, Econ.Geol.: 29: 55-75.
Associated minerals:
Associates:	Azurite Chrysocolla Copper Cuprite Quartz Tenorite
Data
Mineral Data:	Click here to view Malachite data
Locality Data:	Click here to view New Cornelia Mine (Ajo Mine), Ajo, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA
Photo Gallery	View Gallery (10 photos)

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Current server date and time: 16th Feb 2012 11:23:19