Pearl vs Bremen

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A pearl is a hard, glistening object produced within the soft tissue (specifically the mantle) of a living shelled mollusk or another animal, such as fossil conulariids. Just like the shell of a mollusk, a pearl is composed of calcium carbonate (mainly aragonite or a mixture of aragonite and calcite) in minute crystalline form, which has deposited in concentric layers. The ideal pearl is perfectly round and smooth, but many other shapes, known as baroque pearls, can occur. The finest quality of natural pearls have been highly valued as gemstones and objects of beauty for many centuries. Because of this, pearl has become a metaphor for something rare, fine, admirable and valuable. The most valuable pearls occur spontaneously in the wild, but are extremely rare. These wild pearls are referred to as natural pearls. Cultured or farmed pearls from pearl oysters and freshwater mussels make up the majority of those currently sold.

Imitation pearls are also widely sold in inexpensive jewelry, but the quality of their iridescence is usually very poor and is easily distinguished from that of genuine pearls. Pearls have been harvested and cultivated primarily for use in jewelry, but in the past were also used to adorn clothing. They have also been crushed and used in cosmetics, medicines and paint formulations. Whether wild or cultured, gem-quality pearls are almost always nacreous and iridescent, like the interior of the shell that produces them. However, almost all species of shelled mollusks are capable of producing pearls (technically "calcareous concretions") of lesser shine or less spherical shape. Although these may also be legitimately referred to as "pearls" by gemological labs and also under U.S. Federal Trade Commission rules, and are formed in the same way, most of them have no value except as curiosities.

Source: Wikipedia

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The City Municipality of Bremen (, also US: ; German: Stadtgemeinde Bremen, IPA: [ˈʃtatɡəˌmaɪndə ˈbʁeːmən] (listen); Low German also: Breem or Bräm) is the capital of the German federal state Free Hanseatic City of Bremen (also called just "Bremen" for short), a two-city-state consisting of the cities of Bremen and Bremerhaven. With around 570,000 inhabitants, the Hanseatic city is the 11th largest city of Germany as well as the second largest city in Northern Germany after Hamburg. Bremen is the largest city on the River Weser, the longest river flowing entirely in Germany, lying some 60 km (37 mi) upstream from its mouth into the North Sea, and is surrounded by the state of Lower Saxony. A commercial and industrial city, Bremen is, together with Oldenburg and Bremerhaven, part of the Bremen/Oldenburg Metropolitan Region, with 2.5 million people. Bremen is contiguous with the Lower Saxon towns of Delmenhorst, Stuhr, Achim, Weyhe, Schwanewede and Lilienthal. There is an exclave of Bremen in Bremerhaven, the "Citybremian Overseas Port Area Bremerhaven" (Stadtbremisches Überseehafengebiet Bremerhaven). Bremen is the fourth largest city in the Low German dialect area after Hamburg, Dortmund and Essen.

Bremen's port, together with the port of Bremerhaven at the mouth of the Weser, is the second largest port in Germany after the Port of Hamburg. The airport of Bremen (Flughafen Bremen "Hans Koschnick") lies in the southern borough of Neustadt-Neuenland and is Germany's 12th busiest airport. Bremen is a major cultural and economic hub of Northern Germany. The city is home to dozens of historical galleries and museums, ranging from historical sculptures to major art museums, such as the Bremen Overseas Museum (Übersee-Museum Bremen). The Bremen City Hall and the Bremen Roland are UNESCO World Heritage Sites. Bremen is well known through the Brothers Grimm's fairy tale "Town Musicians of Bremen" (Die Bremer Stadtmusikanten), and there is a statue dedicated to it in front of the city hall. Bremen has a reputation as a working-class city. The city is home to many multinational companies and manufacturing centers. Companies headquartered in Bremen include the Hachez chocolate company and Vector Foiltec. Bremen's best known football club is Bundesliga club SV Werder Bremen, who play in the Weser Stadium (Weserstadion), that sits directly on the bank of the Weser.

Source: Wikipedia