publication . Article . Part of book or chapter of book . Other literature type . 2011

Amalgamation and small-scale gold mining in the ancient Andes

Brooks, William E.; Schwörbel, Gabriela; Castillo, Luis Enrique;
Open Access English
  • Published: 01 Aug 2011
  • Publisher: Institut Français d'Études Andines
Abstract
In 1532, the volume of gold provided by Atahualpa, the Inka king, as ransom for his release from the Spanish was hard evidence for the efficient small-scale gold mining that took place before European contact and the number of gold occurrences in the Andes. At Huancavelica, Perú, mercury occurs as a native metal and as cinnabar [HgS], which was used for pigments, funeral preparations, and retorted to obtain mercury. Using Inductively Coupled Plasma analysis (ICP), an average of 15 ppm (parts per million) mercury was found in the gold after the gold-mercury amalgam, with more than 300 000 ppm mercury, was burned to volatilize (rogado) the mercury. From 12,3 to 13...
Subjects
free text keywords: mercure, or, amalgame, géochimie, mercurio, oro, amalgación, geoquímica, amalgamation, mercury, Andes, small-scale gold mining, General Earth and Planetary Sciences, General Environmental Science, Geography, Environmental chemistry, Cinnabar, Placer mining, Mineralogy, Mercury (element), chemistry.chemical_element, chemistry, Amalgam (dentistry), engineering.material, engineering, Native metal, Gold mining, business.industry, business, Gold foil
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publication . Article . Part of book or chapter of book . Other literature type . 2011

Amalgamation and small-scale gold mining in the ancient Andes

Brooks, William E.; Schwörbel, Gabriela; Castillo, Luis Enrique;