Search results
Results from the WOW.Com Content Network
Jewelry making began well before the arrival of the Spanish, with mines providing supplies of metals and stones. The designs of modern Mexican handcrafted jewelry is a mixture of both Spanish and indigenous traditions. Indigenous designs are based on those seen in Mesoamerican codices and artifacts from archeological sites. Most of Mexico's ...
The Old Copper Culture did not develop advanced metalurgy like the principle of creating alloys. This means that many, though they could make metal objects and weapons, continued to use their flint, which could maintain a sharper edge for much longer. The unalloyed copper could simply not compete in daily utilization.
Copper bells, axe heads and ornaments from various parts of Chiapas (1200–1500) on display at the Regional Museum in Tuxtla Gutierrez, Chiapas.. The emergence of metallurgy in pre-Columbian Mesoamerica occurred relatively late in the region's history, with distinctive works of metal apparent in West Mexico by roughly 800 CE, and perhaps as early as 600 CE. [1]
Tumbaga is the name given by Spanish Conquistadors for a non-specific alloy of gold and copper, and metals composed of these elements. Pieces made of tumbaga were widely found in pre-Columbian Mesoamerica in North America and South America. The term is a borrowing from the Tagalog tumbaga.
Metallurgy derives from the Ancient Greek μεταλλουργός, metallourgós, "worker in metal", from μέταλλον, métallon, "mine, metal" + ἔργον, érgon, "work" The word was originally an alchemist's term for the extraction of metals from minerals, the ending -urgy signifying a process, especially manufacturing: it was discussed in this sense in the 1797 Encyclopædia ...
The two main inputs into iron- and steel-making are a source of iron and a source of energy. Additional requirements are a fluxing material to remove the impurities, and alloy metals to give particular properties to the metal. Raw materials used in US iron and steel production, 2012
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
An alloy is distinct from an impure metal in that, with an alloy, the added elements are well controlled to produce desirable properties, while impure metals such as wrought iron are less controlled, but are often considered useful. Alloys are made by mixing two or more elements, at least one of which is a metal.