Inca Historical Tour - The Metal Collection of Puruchuco
http://www.fertur-travel.com/inca_rebellion_archaeological_tour.html
The inhabitants of Puruchuco used ovens or furnaces to transform the minerals they found into metals..
They were built on high peaks to ensure the good ventilation needed to produce a flame hot enough for metallurgy.
The metal created this way was not totally pure, so it had to be refined again in ovens called toccochimpus
Blacksmiths created alloys like tumbago, a mix of copper and gold, along with mixtures of copper and silver, and also copper, silver and goldalways using a higher percentage of copper than the other metals.
Archaeologists have also found alloys with mechanical properties..
..such as strength, durability and malleability. The most common of these were bronzes with high concentrations of tin and arsenic.
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Duration : 0:1:17
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