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While externally similar shapes, these two minerals are very different inside.
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Atacamite from
New Cornelia Mine, Ajo, Little Ajo Mountains, Ajo Mining District, Pima County, Arizona, USA


Locality type:Mine
Classification
Species:Atacamite
Formula:Cu2(OH)3Cl
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Atacamite data
Locality Data:Click here to view New Cornelia Mine, Ajo, Little Ajo Mountains, Ajo Mining District, Pima County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:46692
Long-form Identifier:1:3:46692:3
GUID (UUID V4):0
Nearest other occurrences of Atacamite
78.7km (48.9 miles) ⓘRowley Mine, Theba, Painted Rock Mining District, Painted Rock Mountains, Maricopa County, Arizona, USA
92.3km (57.3 miles) ⓘLakeshore Mine, North Komelik area, Casa Grande Mining District, Pinal County, Arizona, USA
94.8km (58.9 miles) ⓘMildren Mine (Mildren claim; Mildred Mine), Mildren Mine group, Ko Vaya, Cababi Mining District (Comobabi Mining District), Comobabi Mountains, Pima County, Arizona, USA
97.2km (60.4 miles) ⓘSteppe Mine (Steppe claim; Little Mary Mine), Mildren Mine group, Ko Vaya, Cababi Mining District (Comobabi Mining District), Comobabi Mountains, Pima County, Arizona, USA
References
Thomas, William J., Gibbs, Ronald B. (1983) Famous Mineral Localities: The New Cornelia Mine, Ajo, Arizona. The Mineralogical Record, 14 (5) 283-298
 
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