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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.
Fuzhou City | |
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Fuzhou, alternately romanized as Foochow, is the capital and one of the largest cities in Fujian province, China. Along with the many counties of Ningde, those of Fuzhou are considered to constitute the Mindong (lit. Eastern Fujian) linguistic and cultural area.
Fuzhou lies on the north (left) bank of the estuary of Fujian's largest river, the Min River. All along its northern border lies Ningde, and Ningde's Gutian County lies upriver. Its population was 7,115,370 inhabitants as of the 2010 census, of whom 4,408,076 inhabitants are urban representing around 61.95%, while rural population is at 2,707,294 representing around 38.
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