Challacollo is a mine district which includes Lolon pit, Buenaesperanza mine, Walkiria and others. There is no mine actually called Challacollo.
Ref: 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: 631.
Carrasco, M. and G.Chong (1984), Chile.
For full locality listing click here. Alternatively: Click here for heirarchical list of localities in Challacollo, Iquique Province, Tarapacá Region, Chile
29 minerals listed.
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