Search results
Results from the WOW.Com Content Network
Metal-bearing ores were discovered by the Spanish colonists in Cuba, who thought at first that they had found gold. [6] El Cobre was the first copper mine to be opened by the Spanish colonists, starting operations in 1544. [2] This was the first open pit copper mine in the Americas. [5]
He named it Santa Rita del Cobre (Saint Rita of the Copper), after Saint Rita of Cascia and the existing mine. During the early 19th century the mine produced over 6 million pounds (2.7 million kg) of copper annually. [1] The crudely smeltered ore was shipped to Chihuahua for further smelting and then sent to Mexico City on mule back. [1]
Copper working has been done in central Mexico since the pre Hispanic period. [1] However, it is not the first area in the Americas to begin working with the metal. The first evidence of copper work is in what is now the Midwest of the United States as the metal was found here fairly easily on the surface without mining. [2]
Today, the center of traditional copper work in Mexico is the state of Michoacán, especially the municipality of Santa Clara del Cobre. One traditional hammered copper object is a large vessel in which pork fat is rendered or sugar caramelized for making candies. Every year during the month of August Santa Clara del Cobre holds a copper ...
The AIs for copper are: 200 μg of copper for 0–6-month-old males and females, and 220 μg of copper for 7–12-month-old males and females. For both sexes, the RDAs for copper are: 340 μg of copper for 1–3 years old, 440 μg of copper for 4–8 years old, 700 μg of copper for 9–13 years old, 890 μg of copper for 14–18 years old and ...
At the end of the 19th century, El Boleo was known as the Mexican capital of copper, producing 11,000 tonnes of pure copper annually, about half of Mexico's total copper production. [2] In the early 20th century, the company was renowned for using technology considered to be state-of-the-art for ore processing and refining.
Hispanic Heritage Month is very important to Zamanillo as part of his career focused on making Hispanic and Latino history included in U.S. history. After a trip to Washington, D.C., 30 years ago ...
Guanín objects made by the Taínos excavated in Cuba.. Guanín is an alloy of copper, gold and silver, similar to red gold, used in pre-Columbian central America. [1] The name guanín is taken from the language of the Taíno people, who prized it for its reddish color, brilliant shine, and unique smell, and associated it with both worldly and supernatural power.