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Kosmatite
Kosmatite is a mineral, which may also be known as komatiite. It occurs at least in North Macedonia. It may or may not contain clintonite or margarite. Near the city of Prilep in the marble series of the Pelagonian Metamorphic Complex the Sivec Sivec is the trademark of the dolomitic marble extracted from the quarries of Mermeren Kombinat A.D., near the town of Prilep in North Macedonia. The fine grain makes it ideal for sculpture and architectural applications. History The extraction o ... quarry provides white dolomite marble; within this matrix can be found some very rare silicates including phlogopite, cyrnrite and kosmatite. References Silicate minerals {{Mineral-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Komatiite
Komatiite () is a type of ultramafic mantle-derived volcanic rock defined as having crystallised from a lava of at least 18 wt% MgO. Komatiites have low silicon, potassium and aluminium, and high to extremely high magnesium content. Komatiite was named for its type locality along the Komati River in South Africa, and frequently displays spinifex texture composed of large dendritic plates of olivine and pyroxene. Komatiites are rare rocks; almost all komatiites were formed during the Archaean Eon (4.0–2.5 billion years ago), with few younger (Proterozoic or Phanerozoic) examples known. This restriction in age is thought to be due to cooling of the mantle, which may have been hotter during the Archaean. The early Earth had much higher heat production, due to the residual heat from planetary accretion, as well as the greater abundance of radioactive isotopes, particularly shorter lived ones like uranium 235 which produce more decay heat. Lower temperature mantle melts such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Macedonia
North Macedonia, ; sq, Maqedonia e Veriut, (Macedonia before February 2019), officially the Republic of North Macedonia,, is a country in Southeast Europe. It gained independence in 1991 as one of the successor states of Socialist Federal Republic of Yugoslavia, Yugoslavia. It is a landlocked country bordering Kosovo to the northwest, Serbia to the north, Bulgaria to the east, Greece to the south, and Albania to the west. It constitutes approximately the northern third of the larger geographical Macedonia (region), region of Macedonia. Skopje, the capital and largest city, is home to a quarter of the country's 1.83 million people. The majority of the residents are ethnic Macedonians (ethnic group), Macedonians, a South Slavs, South Slavic people. Albanians in North Macedonia, Albanians form a significant minority at around 25%, followed by Turks in North Macedonia, Turks, Romani people in North Macedonia, Romani, Serbs in North Macedonia, Serbs, Bosniaks in North Mac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clintonite
Clintonite is a calcium magnesium aluminium phyllosilicate mineral. It is a member of the margarite group of micas and the subgroup often referred to as the "brittle" micas. Clintonite has the chemical formula. Like other micas and chlorites, clintonite is monoclinic in crystal form and has a perfect basal cleavage parallel to the flat surface of the plates or scales. The Mohs hardness of clintonite is 6.5, and the specific gravity is 3.0 to 3.1. It occurs as variably colored, colorless, green, yellow, red, to reddish-brown masses and radial clusters. The brittle micas differ chemically from the micas in containing less silica and no alkalis, and from the chlorites in containing much less water; in many respects, they are intermediate between the micas and chlorites. Clintonite and its iron-rich variety xanthophyllite are sometimes considered the calcium analogues of the phlogopites.Alietti, Elisa, et al., ''Clintonite-1M: Crystal chemistry and its relationships to closely associ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Margarite
Margarite is a calcium rich member of the mica group of the phyllosilicates with formula: Ca Al2(Al2 Si2) O10(O H)2. It forms white to pinkish or yellowish gray masses or thin laminae. It crystallizes in the monoclinic crystal system. It typically has a specific gravity of around 3 and a Mohs hardness of 4. It is translucent with perfect 010 cleavage and exhibits crystal twinning. It occurs commonly as an alteration product of corundum, andalusite and other aluminous minerals. It has been reported as forming alteration pseudomorphs of chiastolite along with muscovite and paragonite. The margarite in this occurrence forms preferentially along the dark graphite rich inclusions with the chiastolite crystals. Margarite is found in the emery deposits of Turkey and the Aegean islands, and with corundum at several localities in the United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prilep
Prilep ( mk, Прилеп ) is the fourth-largest city in North Macedonia. It has a population of 66,246 and is known as "the city under Marko's Towers" because of its proximity to the towers of Prince Marko. Name The name of Prilep appeared first as ''Πρίλαπος''. The old fortress was attached to the rocky hilltop, and its name means “stuck” ''on the rocks'' in Old Church Slavonic. It was mentioned by John Skylitzes in relation with Samuel of Bulgaria, who died here in 1014. In other languages is: * bg, Прилеп, ''Prilep'' * rup, Pãrleap * Serbo-Croatian: ''Prilep'' / Прилеп * tr, Pirlepe, or ''Perlepe'' * al, Përlep or ''Përlepi'', or ''Prilep'' or ''Prilepi'' * Greek: ''Prilapos'', Πρίλαπος * Latin: ''Prilapum'' Economy Prilep is a centre for high-quality tobacco and cigarettes, as well as metal processing, electronics, timber, textiles, and food industries. The city also produces a large quantity of Macedonian Bianco Sivec (pure whit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sivec
Sivec is the trademark of the dolomitic marble extracted from the quarries of Mermeren Kombinat A.D., near the town of Prilep in North Macedonia. The fine grain makes it ideal for sculpture and architectural applications. History The extraction of Sivec marble can be dated back 500 BCE and earlier. Extraction flourished under the Roman period when the quarries near the ancient city of Stibera (today Prilep) produced stone for the production of Roman sculptures, as well as replicas of Greek original bronzes. These replicas went to Rome or to other parts of the empire. Sivec is a renowned material that was extensively utilized in southeastern Europe from the 3rd century BCE until the 5th century CE, giving rise to some of the most visually breathtaking creations of the ancient world. It is estimated that approximately 1.2 million cubic meters of Sivec White Marble were extracted from the Prilep area during this period. Through the centuries, Sivec was used for many building and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolomite Marble
Dolomite may refer to: * Dolomite (mineral), a carbonate mineral * Dolomite (rock), also known as dolostone, a sedimentary carbonate rock * Dolomite, Alabama, United States, an unincorporated community *Dolomite, California, United States, an unincorporated community * Dolomites, a section of the Alps * Triumph Dolomite (1934–1940), a sporting car made by Triumph Motor Company *Triumph Dolomite, a small car made by the British Leyland Corporation in the 1970s and 1980s *Manila Bay Beach, informally known as "Dolomite Beach", an urban artificial beach in Manila, Philippines See also *'' Dolemite'', 1975 blaxploitation feature film and the name of its principal character **''Shaolin Dolemite'', a 1999 in-name-only sequel to ''Dolemite'' **"Dolemite", the opening track on ''Tore Down House'', a 1997 album by Scott Henderson; the track features samples from the film *'' Dolemite Is My Name'', 2019 American biographical comedy film *''Dolomiten ''Dolomiten'' is an Italian local dai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phlogopite
Phlogopite is a yellow, greenish, or reddish-brown member of the mica family of phyllosilicates. It is also known as magnesium mica. Phlogopite is the magnesium endmember of the biotite solid solution series, with the chemical formula KMg3AlSi3O10(F,OH)2. Iron substitutes for magnesium in variable amounts leading to the more common biotite with higher iron content. For physical and optical identification, it shares most of the characteristic properties of biotite. Paragenesis Phlogopite is an important and relatively common end-member composition of biotite. Phlogopite micas are found primarily in igneous rocks, although it is also common in contact metamorphic aureoles of intrusive igneous rocks with magnesian country rocks and in marble formed from impure dolomite (dolomite with some siliclastic sediment). The occurrence of phlogopite mica within igneous rocks is difficult to constrain precisely because the primary control is rock composition as expected, but phlogopite is al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
