Torreon vs Cobalt

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Torreón (Spanish pronunciation: [toreˈon] (listen)) is a city and seat of Torreón Municipality in the Mexican state of Coahuila. As of 2015, the city's population was 679,288. The metropolitan population as of 2015 was 1,497,734, making it the ninth-biggest metropolitan area in the country and the largest metropolitan area in the state of Coahuila, as well as one of Mexico's most important economic and industrial centers. The cities of Torreón, Gómez Palacio, Lerdo, Matamoros, Francisco I. Madero, San Pedro, Bermejillo, and Tlahualilo form the area of La Laguna or the Comarca Lagunera, a basin within the Chihuahuan Desert. The area was originally a center for ranching.

With irrigation, the city became an important center for farming and the processing of cotton. In the middle of the 20th century, it became an industrial city. The city has industries in textiles, clothing and metals processing. Some important industries and companies have business here, like Peñoles, Motores John Deere, Grupo Lala, Yura Corporation, as well as stores like Soriana, Cimaco, and Extra. There are also several shopping malls in the city, including Galerias Laguna, Almanara, Plaza Cuatro Caminos, and InterMall. Torreón is served by Francisco Sarabia International Airport, an airport with flights to several cities in Mexico and the United States.

Source: Wikipedia

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Cobalt is a chemical element with the symbol Co and atomic number 27. Like nickel, cobalt is found in the Earth's crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. Cobalt-based blue pigments (cobalt blue) have been used since ancient times for jewelry and paints, and to impart a distinctive blue tint to glass, but the color was later thought to be due to the known metal bismuth. Miners had long used the name kobold ore (German for goblin ore) for some of the blue-pigment-producing minerals; they were so named because they were poor in known metals, and gave poisonous arsenic-containing fumes when smelted. In 1735, such ores were found to be reducible to a new metal (the first discovered since ancient times), and this was ultimately named for the kobold. Today, some cobalt is produced specifically from one of a number of metallic-lustered ores, such as cobaltite (CoAsS). The element is, however, more usually produced as a by-product of copper and nickel mining.

The copper belt in the Democratic Republic of the Congo (DRC) and Zambia yields most of the global cobalt production. World production in 2016 was 116,000 metric tons (114,000 long tons; 128,000 short tons) (according to Natural Resources Canada), and the DRC alone accounted for more than 50%.Cobalt is primarily used in lithium-ion batteries, and in the manufacture of magnetic, wear-resistant and high-strength alloys. The compounds cobalt silicate and cobalt(II) aluminate (CoAl2O4, cobalt blue) give a distinctive deep blue color to glass, ceramics, inks, paints and varnishes. Cobalt occurs naturally as only one stable isotope, cobalt-59. Cobalt-60 is a commercially important radioisotope, used as a radioactive tracer and for the production of high-energy gamma rays. Cobalt is the active center of a group of coenzymes called cobalamins. Vitamin B12, the best-known example of the type, is an essential vitamin for all animals. Cobalt in inorganic form is also a micronutrient for bacteria, algae, and fungi.

Source: Wikipedia