Atacama virtual: Englishwww.geovirtual2.cl
Museo Virtual, Chile
W. Griem, 2006 - 2021
Photo Information: Camera Kodak DX6490: [100_6299.jpg]
Focal Length: 6,3mm (=38/35mm) | Time: 1:350
F: f/3.6 | Original size: 2304 x 1728 | Date: 2005/07/22/16:33 hrs.
Photo Information: Camera Kodak DX6490: [100_6301.jpg]
Focal Length: 9,8mm (=59/35mm) | Time: 1:125
F: f/3.2 | Original size: 2304 x 1728 | Date: 2005/07/22/17:13 hrs.
In 1869 45 mines had been counted in the district, but
only 23 show continuous production (more than 6 months in the year). In
December of the same year, there were 501 people working in the sector.
Most of them were hewer, and barrow man. The sector had 2 steam engines
and 16 winches.
The most important mine, the "Agua Amarilla" produced about 50% of fine copper in the district. Copper grades of the vein were generally between 15 to 27%. The most productive and technologically advanced mine, the "Agua Amarilla" shows a fairly low value of 15.6%.
In 1909 there were about 300 people working. Especially in the Minas Agua Amarilla and Coquimbana. (Yunge, 1910).
It is worth mentioning that in total 17 mines had 1869 a certain amount of silver. But only 4 (Socabon, Viscacha, Lindero and Candelaria) achieved an almost uninterrupted production. Some mine operations appeared in a more sporadic form, for example, the Andacollo Mine, which in its only month of production reached a quantity of 4,560 kilograms of fine silver.
Silver grades were quite interesting: from 285 g/ton to 1,800 g/ton. But always in conjunction with a good copper grade. In conclusion, silver had a certain importance in the Cerro Blanco sector, but it remained far from production figures obtained in Chañarcillo or Tres Puntas.
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