|Location is approximate, estimate based on other nearby localities.|
|Latitude & Longitude (WGS84):||29° South , 70° West (est.)|
|Margin of Error:||~40km|
|Köppen climate type:||BWk : Cold desert climate|
Many of the minerals listed from the 21 de Mayo Mine have been confirmed and analysed by Dr. Uwe Kolitsch and Dr. Jochen Schlüter (Maurizio Dini information).
19 valid minerals.
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- Oyarzun, R., Ortega, L., Sierra, J., Lunar, R., and Oyarzun, J. (1998): Cu, Mn, and Ag mineralization in the Quebrada Marquesa Quadrangle, Chile: the Talcuna and Arqueros districts. Mineralium Deposita 33, 547-559.