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Pearl | |
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State | |
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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.
Addis Ababa | |
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State | Addis Ababa |
Country | Ethiopia |
Capital | |
Population | 3147000 |
Addis Ababa (Amharic: አዲስ አበባ, Addis Abäba IPA: [adˈdis ˈabəba] (listen),"new flower"), also known as Finfinne(Oromo: Finfinne"natural spring"), is the capital and largest city of Ethiopia. According to the 2007 census, the town has a population of 2,739,551 inhabitants. As a chartered city, Addis Ababa also functions as the capital city of the Oromia Region. It is where the African Union is headquartered and where its predecessor the Organisation of African Unity (OAU) was established. It also hosts the headquarters of the United Nations Economic Commission for Africa (ECA), in addition to various other continental and worldwide organizations.