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Anyolite
Anyolite is a metamorphic rock composed of intergrown green zoisite, black/dark green pargasite and ruby. It has been found in the Arusha Region of Tanzania and in Austria. It is sometimes incorrectly advertised as a variety of the mineral zoisite. The term ''anyolite'' is, however, not an officially accepted term for a metamorphic rock. Its name derives from the Maasai word ''anyoli'', meaning "green". Anyolite is also referred to as ruby in zoisite, ruby zoisite, ruby-zoisite or Tanganyika artstone. The contrasting colours make anyolite a popular material for sculptures and other decorative objects. It was first discovered at the Mundarara Mine, near Longido, Tanzania in 1954. In 2010 it was suggested that a 2 kilogram stone known as the ''Gem of Tanzania'' owned by the defunct company Wrekin Construction and fraudulently valued at £11 million was actually a lump of anyolite worth about £100, although it was eventually sold for £8000. It is reported that the stone origina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anyolite (corundum-amphibole Zoisitite) (Neoproterozoic; Mundarara Mine, About 27 Km West Of Longido, Tanzania) 2 (49144140952)
Anyolite is a metamorphic rock composed of intergrown green zoisite, black/dark green pargasite and ruby. It has been found in the Arusha Region of Tanzania and in Austria. It is sometimes incorrectly advertised as a variety of the mineral zoisite. The term ''anyolite'' is, however, not an officially accepted term for a metamorphic rock. Its name derives from the Maasai word ''anyoli'', meaning "green". Anyolite is also referred to as ruby in zoisite, ruby zoisite, ruby-zoisite or Tanganyika artstone. The contrasting colours make anyolite a popular material for sculptures and other decorative objects. It was first discovered at the Mundarara Mine, near Longido, Tanzania in 1954. In 2010 it was suggested that a 2 kilogram stone known as the ''Gem of Tanzania'' owned by the defunct company Wrekin Construction and fraudulently valued at £11 million was actually a lump of anyolite worth about £100, although it was eventually sold for £8000. It is reported that the stone originall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pargasite
Pargasite is a complex inosilicate mineral of the amphibole group with formula NaCa2(Mg4Al)(Si6Al2)O22(OH)2. It was first described for an occurrence in Pargas, Finland in 1814 and named for the locality. It occurs in high temperature regional metamorphic rocks and in the skarns within contact aureoles around igneous intrusions. It also occurs in andesite volcanic rocks and altered ultramafic rocks. Pargasite is the main water-storage site in the uppermost mantle, however it becomes unstable at depths greater than . This has significant consequences for the water storage capacity, and the solidus temperature of the lherzolite of the upper mantle. It is used as a gemstone. See also *Anyolite Anyolite is a metamorphic rock composed of intergrown green zoisite, black/dark green pargasite and ruby. It has been found in the Arusha Region of Tanzania and in Austria. It is sometimes incorrectly advertised as a variety of the mineral zoisit ... References Amphibole gro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruby
A ruby is a pinkish red to blood-red colored gemstone, a variety of the mineral corundum ( aluminium oxide). Ruby is one of the most popular traditional jewelry gems and is very durable. Other varieties of gem-quality corundum are called sapphires. Ruby is one of the traditional cardinal gems, alongside amethyst, sapphire, emerald, and diamond. The word ''ruby'' comes from ''ruber'', Latin for red. The color of a ruby is due to the element chromium. Some gemstones that are popularly or historically called rubies, such as the Black Prince's Ruby in the British Imperial State Crown, are actually spinels. These were once known as "Balas rubies". The quality of a ruby is determined by its color, cut, and clarity, which, along with carat weight, affect its value. The brightest and most valuable shade of red, called blood-red or pigeon blood, commands a large premium over other rubies of similar quality. After color follows clarity: similar to diamonds, a clear stone wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mundarara Mine
} Mundarara is an administrative ward in the Longido District of the Arusha Region of Tanzania Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands .... The ward covers an area of , and has an average elevation of . According to the 2012 census, the ward has a total population of 7,301. the mineral Anyolite was first discovered there. References Wards of Longido Wards of Arusha Region {{Arusha-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longido
Longido is a small town and ward in Arusha Region in Tanzania. It is the administrative seat for Longido District. Most of the inhabitants are Maasai, but there are other East African tribes as well. Longido is at the foot of Mount Longido, which can be climbed in one and a half days. Longido includes some basic accommodation (guest houses), restaurants, bars, and general stores. There is also a police station there, several churches, and a primary and secondary school. Electricity in the town is by national electricity grid. History A 1928 ascent of Mount Longido was described in Vivienne de Watteville's book ''Speak to the Earth'' (1935). Anyolite was first discovered at the Mundarara Mine near Longido in 1954. In 2007, Longido became the capital of Longido District, which was formed out of part of Monduli District Monduli is one of the seven districts of the Arusha Region of Tanzania. The District covers an area of . It is bordered to the north by Longido District, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metamorphic Rock
Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock ( protolith) is subjected to temperatures greater than and, often, elevated pressure of or more, causing profound physical or chemical changes. During this process, the rock remains mostly in the solid state, but gradually recrystallizes to a new texture or mineral composition. The protolith may be an igneous, sedimentary, or existing metamorphic rock. Metamorphic rocks make up a large part of the Earth's crust and form 12% of the Earth's land surface. They are classified by their protolith, their chemical and mineral makeup, and their texture. They may be formed simply by being deeply buried beneath the Earth's surface, where they are subject to high temperatures and the great pressure of the rock layers above. They can also form from tectonic processes such as continental collisions, which cause horizontal pressure, friction, and dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoisite
Zoisite, first known as saualpite, after its type locality, is a calcium aluminium hydroxy sorosilicate belonging to the epidote group of minerals. Its chemical formula is Ca2 Al3( Si O4)(Si2O7)O(O H). Zoisite occurs as prismatic, orthorhombic (2/m 2/m 2/m) crystals or in massive form, being found in metamorphic and pegmatitic rock. Zoisite may be blue to violet, green, brown, pink, yellow, gray, or colorless. Blue crystals are known under the name tanzanite. It has a vitreous luster and a conchoidal to uneven fracture. When euhedral, zoisite crystals are striated parallel to the principal axis (c-axis). Also parallel to the principal axis is one direction of perfect cleavage. The mineral is between 6 and 7 on the Mohs hardness scale, and its specific gravity ranges from 3.10 to 3.38, depending on the variety. It streaks white and is said to be brittle. Clinozoisite is a more common monoclinic polymorph of Ca2Al3(SiO4)(Si2O7)O(OH). Transparent material is fashione ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arusha Region
Arusha City is a Tanzanian city and the regional capital of the Arusha Region, with a population of 416,442 plus 323,198 in the surrounding Arusha District Council (2012 census). Located below Mount Meru on the eastern edge of the eastern branch of the Great Rift Valley, Arusha City has a temperate climate. The city is close to the Serengeti National Park, the Ngorongoro Conservation Area, Lake Manyara National Park, Olduvai Gorge, Tarangire National Park, Mount Kilimanjaro, and Mount Meru in the Arusha National Park. The city is a major international diplomatic hub. It hosts the African Court of the African Union and is the capital of the East African Community. From 1994 to 2015, the city also hosted the International Criminal Tribunal for Rwanda, but that entity has ceased operations. It is a multicultural city with a majority Tanzanian population of mixed backgrounds: indigenous African, Arab-Tanzanian and Indian-Tanzanian population, plus a small European and N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tanzania
Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands and the Indian Ocean to the east; Mozambique and Malawi to the south; Zambia to the southwest; and Rwanda, Burundi, and the Democratic Republic of the Congo to the west. Mount Kilimanjaro, Africa's highest mountain, is in northeastern Tanzania. According to the United Nations, Tanzania has a population of million, making it the most populous country located entirely south of the equator. Many important hominid fossils have been found in Tanzania, such as 6-million-year-old Pliocene hominid fossils. The genus Australopithecus ranged across Africa between 4 and 2 million years ago, and the oldest remains of the genus '' Homo'' are found near Lake Olduvai. Following the rise of '' Homo erectus'' 1.8 million years ago, humanit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mineral
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. (2011): Minerals'; p. 1. In the series ''Geology: Landforms, Minerals, and Rocks''. Rosen Publishing Group. The geological definition of mineral normally excludes compounds that occur only in living organisms. However, some minerals are often biogenic (such as calcite) or are organic compounds in the sense of chemistry (such as mellite). Moreover, living organisms often synthesize inorganic minerals (such as hydroxylapatite) that also occur in rocks. The concept of mineral is distinct from rock, which is any bulk solid geologic material that is relatively homogeneous at a large enough scale. A rock may consist of one type of mineral, or may be an aggregate of two or more different types of minerals, spacially segregated into distinct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maasai Language
Maasai (previously spelled ''Masai'') or Maa (; autonym: ''ɔl Maa'') is an Eastern Nilotic language spoken in Southern Kenya and Northern Tanzania by the Maasai people, numbering about 800,000. It is closely related to the other Maa varieties: Samburu (or Sampur), the language of the Samburu people of central Kenya, Chamus, spoken south and southeast of Lake Baringo (sometimes regarded as a dialect of Samburu); and Parakuyu of Tanzania. The Maasai, Samburu, il-Chamus and Parakuyu peoples are historically related and all refer to their language as ''ɔl Maa''. Properly speaking, "Maa" refers to the language and the culture and "Maasai" refers to the people "who speak Maa." Phonology The Maasai variety of ''ɔl Maa'' as spoken in southern Kenya and Tanzania has 30 contrasting sounds, which can be represented and alphabetized as follows: ''a'', ''b'', ''ch'' (a variant of ''sh''), ''d'', ''e'', ''ɛ'', ''g'', ''h'', ''i'', ''ɨ'', ''j'', ''k'', ''l'', ''m'', ''n'', ''ny' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wrekin Construction
The Wrekin is a hill in east Shropshire, England. It is located some five miles (8 km) west of Telford, on the border between the unitary authorities of Shropshire and Telford and Wrekin. Rising above the Shropshire Plain to a height of 407 metres (1,335 feet) above sea level, it is a prominent and well-known landmark, signalling the entrance to Shropshire for travellers westbound on the M54 motorway. The Wrekin is contained within the northern salient of the Shropshire Hills AONB. The hill is popular with walkers and tourists and offers good views of Shropshire. It can be seen well into Staffordshire and the Black Country, and even as far as the Beetham Tower in Manchester, Winter Hill in Lancashire and Cleeve Hill in Gloucestershire. Name The earliest mention of ''the Wrekin'' occurs in a charter of 855, as entered in a late 11th century Worcester cartulary, spelled ''Wreocensetun''. Its modern form is believed to have come into modern English by way of Mercian, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
