Pearl | |
---|---|
State | |
Country | |
Capital | |
Population | 0 |
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.
Frankfurt | |
---|---|
State | |
Country | |
Capital | |
Population | 701350 |
Frankfurt, officially Frankfurt am Main (German: [ˈfʁaŋkfʊʁt ʔam ˈmaɪn] (listen); Hessian: Frangford am Maa, lit. "Frank ford on the Main"), is the most populous city in the German state of Hesse. Its 763,380 inhabitants as of December 31, 2019 make it the fifth-most populous city in Germany. On the River Main (a tributary of the Rhine), it forms a continuous conurbation with the neighboring city of Offenbach am Main and its urban area has a population of 2.3 million. The city is the heart of the larger Rhine-Main Metropolitan Region, which has a population of 5.5 million and is Germany's second-largest metropolitan region after the Rhine-Ruhr Region. Frankfurt's central business district lies about 90 km (56 mi) northwest of the geographic center of the EU at Gadheim, Lower Franconia. Like France and Franconia, the city is named after the Franks. Frankfurt is the largest city in the Rhine Franconian dialect area.
Frankfurt was a city state, the Free City of Frankfurt, for nearly five centuries, and was one of the most important cities of the Holy Roman Empire, as a site of imperial coronations; it lost its sovereignty upon the collapse of the empire in 1806, regained it in 1815 and then lost it again in 1866, when it was annexed (though neutral) by the Kingdom of Prussia. It has been part of the state of Hesse since 1945. Frankfurt is culturally, ethnically and religiously diverse, with half of its population, and a majority of its young people, having a migrant background. A quarter of the population consists of foreign nationals, including many expatriates.
Frankfurt is a global hub for commerce, culture, education, tourism and transportation, and rated as an "alpha world city" according to GaWC. It is the site of many global and European corporate headquarters.
A garland is a decorative braid, knot or wreath of flowers, leaves, or other material. Garlands...
A warren is a network of wild rodent or lagomorph, typically rabbit burrows. Domestic warrens are...
A Coruña (Galician: [ɐ koˈɾuɲɐ]; Spanish: La Coruña [la koˈɾuɲa]; historical English: Corunna or...
Viedma (Spanish pronunciation: [ˈbjeðma]) is the capital and fourth largest city of the Río Negro...