|Location is approximate, estimate based on other nearby localities.|
|Latitude & Longitude:||15° South , 73° West (est.)|
|Margin of Error:||~122km|
Copper mine in far northern Arequipa Department, near to Nazca (although Nazca itself is in neighboring Ica department). Surrounding country rock, outside the mine, is the source of both the pink and blue "Andean opal" of commerce. The blue opal is opal colored by chrysocolla inclusions. The "pink andean opal" is a special type of fibrous opal-CT, with about 10 - 40% palygorskite (Fritsch et al, 2004).
8 valid minerals.
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Fritsch, E., Gaillou, E., Ostroumov, M., Rondeau, B., Devouard, B., Barreau, A. (2004) Relationship between nanostructure and optical absorption in fibrous pink opals from Mexico and Peru. European Journal of Mineralogy, 16, 743-752.
- Jaroslav Hyrsl, Jack A.Crowley, Rock H.Currier, Terry Szenics.(2011): PERU - PARADISE OF MINERALS.544pp. / Acari Mine. page 434