Cobalt vs Abong-Mbang

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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

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Abong-Mbang is a town and commune in the East Region of Cameroon. Abong-Mbang is located at a crossroads of National Route 10 and the road that leads south to Lomié. Yaoundé, the capital of Cameroon, is 178 km to the west, and Bertoua, the capital of the East Province, lies 108 km to the east. From Ayos, at the border in the Centre Province 145 km (90 mi) from Abong-Mbang, the tar on National Route 10 ends and a dirt road begins. Abong-Mbang is the seat of the Abong-Mbang sub-division and the Haut-Nyong division. The town is headed by a mayor. Gustave Mouamossé has held the post since August 2002. Abong-Mbang is site of one of the East Province's four Courts of First Instance and a prefectural prison. The population was estimated at 18,700 in 2001.According to oral traditions of the Kwassio and Bakola peoples, Abong-Mbang was settled when the Maka-Njem peoples moved northwest from the Great Lakes region of the Congo River. They encountered Pygmy hunter-gatherers and requested their aid as guides through the region. Some of the migrants settled in the vicinity, which they called Bung-Ngwang ("bathing area in the Nyong River"). When Europeans arrived in the 19th century, this name was changed to Abong-Mbang. Some migrants continued westward in search of salt; they became the Kwassio and Bakola of Cameroon's coast. German colonisers moved into the area in the late 19th century. They used the Nyong River as a means to reach the wild rubber growing farther inland. The Germans built a fort and other military and administrative buildings in the town. The fort is today a prefectural prison, and the other buildings serve similar administrative functions. The French took over in 1919 following Germany's defeat in World War I. Abong-Mbang is the main settlement of the Maka people, a group who speak a Bantu language of the same name. Much of the population farms; important crops include bananas, cocoa, corn, groundnuts, tomatoes, and tubers. Shifting cultivation with no fertiliser is the primary method of agriculture. Baka hunter-gatherers live in the surrounding forests. Since colonial times, the government has attempted to better integrate this group into Cameroonian society.

Abong-Mbang is part of the Doumé-Abong-Mbang diocese of the Roman Catholic Church. The church estimates that 46.7% of the population is Roman Catholic.Since Francophone Cameroun's independence in 1960, Abong-Mbang has become an important centre of commerce for the East Province. This has led to a cosmopolitan influx of immigrants from outside the Maka area. An estimated 99% of males and 95% of females speak French. However, among traders, Ewondo is the lingua franca of choice: 72% use Ewondo but only 48% use French in market situations. By the late 1970s, the government had zoned large areas of the surrounding forest for timber exploitation. Most timber and bush meat traffic from the East Province passes through the town. Union Abong-Mbang FC is the local football (soccer) team. The town often suffers prolonged cuts to electric power, which the utility company, AES-SONEL, blames on an aging power plant. On 17 September 2007, violent protests against the cuts ended with two protesters dead and 10 others seriously injured. Abong-Mbang lies on the South Cameroon Plateau, approximately 700 metres above sea level. The soils are red. The Boumba, Dja, and Nyong rivers rise in the Abong-Mbang region. The Nyong forms the town's northern border and is navigable for about 160 km (100 mi) to Mbalmayo in the Centre Province. The area along the Nyong consists of swampy forests that support populations of raffia palm, such as Raphia montbuttorum. The area surrounding the town consists of secondary-growth forest of semi-deciduous trees, particularly Sterculiaceae and Ulmaceae; the primary-growth forest has been removed for logging and farming. In some areas, the forests are further degraded and home to other forms of vegetation. The Abong-Mbang Forest Reserve is north of the town. Local wildlife includes populations of western lowland gorilla and forest elephants. An estimated 100 elephants lived in the Abong-Mbang Forest Reserve in 1998. The Ntimbe Caves are 18 km (11 mi) south of the town.

Source: Wikipedia