Cobalt vs Sarasota

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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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Sarasota () is a city in Sarasota County on the southwestern coast of the U.S. state of Florida. The area is renowned for its cultural and environmental amenities, beaches, resorts, and the Sarasota School of Architecture. The city is at the southern end of the Tampa Bay Area, north of Fort Myers and Punta Gorda. Its official limits include Sarasota Bay and several barrier islands between the bay and the Gulf of Mexico. According to the U.S. Census Bureau, in 2019 Sarasota had a population of 58,285. In 1986 it became designated as a certified local government. Sarasota is a principal city of the Sarasota metropolitan area, and is the seat of Sarasota County. Long the winter headquarters of the Ringling Brothers Circus, many landmarks in Sarasota are named for the Ringlings. The Sarasota city limits contain several keys, including Lido Key, St. Armands Key, Otter Key, Casey Key, Coon Key, Bird Key, and portions of Siesta Key.

Longboat Key is the largest key separating the bay from the gulf, but it was evenly divided by the new county line of 1921. The portion of the key that parallels the Sarasota city boundary that extends to that new county line along the bay front of the mainland was removed from the city boundaries at the request of John Ringling in the mid-1920s, who sought to avoid city taxation of his planned developments at the southern tip of the key. Although they never were completed in the quickly faltering economy, those development concessions granted by the city never were reversed and the county has retained regulation of those lands. The city limits had expanded significantly with the real estate rush of the early twentieth century, reaching almost 70 square miles (180 km2). The wild speculation boom began to crash in 1926 and following that, the city limits began to contract, shrinking to less than a quarter of that area.

Source: Wikipedia