what is pegmatite used for

Definition of pegmatite in the Definitions.net dictionary. at the margins of batholiths. An exceptionally coarse-grained igneous rock, with interlocking crystals, usually found as irregular dikes, lenses, or veins, esp. Streak of Pegmatite is white while its cleavage is perfect. Its resistance to heat and antipruritic properties mean that it is often used for casings and coverings. ; The most important sources of sheet mica are pegmatite deposits. Pegmatite is a very crystalline, intrusive igneous rock composed of interlocking crystals usually larger than 2.5 cm in size. The following article is from The Great Soviet Encyclopedia (1979). ; It is a product of the decomposition of beryl in pegmatites. What does pegmatite mean? Today it is ap- plied to any crystalline roclz that is, at least in part, ex- tremely coarse grained. ; Wolframite is found in quartz veins and pegmatites associated with intrusives. I classified them as cyrtolites (Zr[(SiO4)(OH)4])because of their rounded/amorphous structure. Pegmatite are used as architectural stone. The big clear crystals are used as semi-precious gemstones, while non-gem quality occurrences are used as a source of alumina phosphate and lithium in the ceramics industry. The shape of pegmatite bodies range from from tabular to inverted teardrop-shaped and range in size from several tens of meters up to a kilometer or more in extent! Pegmatite is an intrusive igneous rock made up of large interlocking crystals.The word "pegmatite" comes from the Greek word pegnymi, which means "to bind together," referring to the entwined feldspar and quartz crystals commonly found in the rock. Additionally, red iron oxide is used as a flux in ceramic and glaze production . Other are to be mined for rare minerals and gemstones such as aquamarine, topaz and tourmaline that are associated with pegmatite and are not formed with other rocks. accessed December 2011). The Harding Pegmatite Mine is a former adit mine that extracted lithium, tantalum, and beryllium from a Precambrian pegmatite sill.It ceased operations in 1958 and its owner, Arthur Montgomery, donated it to the University of New Mexico, which runs the site as an outdoor geology laboratory with mineral collecting permitted on a small scale. Crystals up to … Know all about Pegmatite, What is Pegmatite, its composition, features, facts and reserves in next sections. Pegmatite rocks are a great source of construction aggregates, road aggregates, and as a base material in landscaping & outdoor paving in nearby areas of pegmatite quarries or mines. Pegmatite, almost any wholly crystalline igneous rock that is at least in part very coarse grained, the major constituents of which include minerals typically found in ordinary igneous rocks and in which extreme textural variations, especially in grain size, are characteristic. African Pegmatite is a leading processor, miller and supplier of high quality chrome flour and other premium chromite-based refractory and pigmentation compounds, for a wealth of uses where excellence, reliability and service are paramount. The most spectacular pegmatites contain abnormally large crystals mixed with medium sized and smaller crystals. Mircrocline is a hard mineral that breaks at right angles, and is the feldspar of choice for any pegmatite. ; The most important sources of sheet mica are pegmatite deposits. ; Wolframite is found in quartz veins and pegmatites associated with intrusives. What is Pegmatite. This silica-rich (SiO2) member of the feldspar family is enriched in potassium and can be white, or pink with hints of yellow. Pegmatite Pegmatites are one of the more significant varieties of intrusive, mafic igneous rock, due to their higher concentration of rare-earth minerals and gemstones. Some of the pegmatite crystals can be absolutely monstrous. If the pegmatite is sound and attractive, it might be cut into slabs and polished for building facing, countertops, tile or other decorative stone products and sold commercially as a “granite.” Pegmatite is used in gemstone mining because of it has large crystal minerals. Rough-cut and polished granite is used in buildings, bridges, paving, monuments, and many other exterior projects. Pegmatite is translucent to opaque in nature. It is also a Parsing Expression Grammar library that rocks! Pegmatite is most often sold commercially as a granite product. The zircons (and the pegmatite) are rich in uranium, thorium, yttrium, and other REEs. Locality ListHide - This locality has map coordinates listed. What is Pegmatite. Antonyms for pegmatite. Information and translations of pegmatite in the most comprehensive dictionary definitions resource on the web. The symbol next to localities in the list can be used to jump to that position on the map. Choose from 12 different sets of pegmatite flashcards on Quizlet. Some of the other common minerals found in a simple pegmatite are quartz, feldspar and muscovite mica. Another large pegmatite in Manitoba, Canada (the Tanco pegmatite) is mined for tantalum and niobium, which are used … A term originally suggested by Haüy as a synonym for graphic granite, but later used for the coarse-grained facies of any type of igneous rock. Meaning of pegmatite. Pegmatite is granite-like rock that isn’t very useful on its own but houses some very beneficial elements such as rare earth elements, lithium, tantalum, niobium, and many gemstones including apatite, aquamarine, emerald, garnet, spodumene, topaz, tourmaline, and zircon. Learn pegmatite with free interactive flashcards. The geological setting of pegmatites and the parental and cogenetic fertile granites worldwide range from Precambrian to Cenozoic. It usually contains small quantities of mica or hornblende, and minor accessory minerals may be present. There is a report of a pegmatite quarry in the Urals of Russia that occupies a single crystal of feldspar. Indoors, polished granite slabs and tiles are used in countertops, tile floors, stair treads, and many other practical and decorative features. The Greenbushes pegmatite is also the major source of technical-grade Li (USGS 2011 Mineral Commodities Summary), where spodumene is used directly in the ceramics or glass industries without processing. ; It is a product of the decomposition of beryl in pegmatites. This mineral is used as an opaque gemstone when it occurs as the bright green variety known as Amazonite. To do. Used in ceramics, feldspar and pegmatite are the main vitrifying or fluxing agent used during the firing process of ceramic bodies.Feldspars with low levels of colored oxides are particularly prized for white tableware and sanitaryware production. It is also, in the Computer Lab’s tradition of using bad puns for naming, a Parsing Expression Grammar library that rocks! 2 words related to pegmatite: igneous rock, samarskite. It might be outdated or ideologically biased. Lithium is mined from three types of deposits: brines, pegmatites and sedimentary rocks. The rare element pegmatites occur in orogenic belts in association with late- to post-tectonic granites and large regional faults in upper-greenschist- to lower-amphibolite-facies rocks postdating the peak of regional metamorphism. PEGMATITE is a common plutonic rock, of variable texture and coarseness, that is composed of interlocking crystals of widely different sizes. ; Brockite occurs in granite and granite pegmatite as an accessory mineral. Granite has been used for thousands of years in both interior and exterior applications. Luster of Pegmatite is grainy, pearly and vitreous and its fracture is conchoidal. It is also found in pegmatite in Madagascar and in Brazil. Igneous rocks are basically used in flooring, landscaping and construction projects. The gemstones found in pegmatite include apatite, aquamarine, beryl, emerald, garnet, topaz, zircon, kunzite, and many others. The strength of Pegmatite is 178.54 N/mm 2. Rocks that display large, granular crystal structure are called "pegmatitic." Here's a look at lithium brine deposits. pegmatite: see granite granite, coarse-grained igneous rock of even texture and light color, composed chiefly of quartz and feldspars. It is also found in pegmatite in Madagascar and in Brazil. noun pegmatite a coarsely crystalline granite or other high-silica rock occurring in veins or dikes. Pegmatite, if sound and appealing, might be cut into slabs, polished, and used for building facades, countertops, tile, or other decorative stone products. Synonyms for pegmatite in Free Thesaurus. The famous mineralogist Hafly first used the word pegmatite in the early 1800s to refer to a roclz with a patterned geometric intergrowth of feldspar and quartz (now commonly termed graphic granite). However, igneous rock uses are specific to its type, which is classified according to the formation process, mineral content, hardness, texture and other properties. Pegmatite Uses. Pegmatite is a very crystalline, intrusive igneous rock composed of interlocking crystals usually larger than 2.5 cm in size. Examples of how to use “pegmatite” in a sentence from the Cambridge Dictionary Labs Kings Mountain, USA), Architectural Uses of Pegmatites in Dimension Industry: Due to stunning appearance and mineral values, pegmatites are high-quality decorative aggregates. What are synonyms for pegmatite? Signifi cant past production of Li has come from albite– spodumene-type pegmatites (e.g. Giant crystals, ; Brockite occurs in granite and granite pegmatite as an accessory mineral. The lithium is an important component in a lot of batteries, including the one likely to be in your phone right now, or the laptop you may be reading this on. African Pegmatite is a leading miner, miller and processor of the highest quality red iron oxide for a wealth of applications. Despite being a high-grade lithium pegmatite, the presence of fluorine (F) in the montebrasite could compromise the quality of lithium compounds for the battery industry. Pegmatite uses are the country rock used for architectural purposes as slabs, dimension stones etc. Not in order: Write parameterised delegate for generating semantic HTML markup Rough-Cut and polished granite is used in flooring, landscaping and construction projects naming, a Expression. Called `` pegmatitic. minerals may be present comprehensive dictionary definitions resource on web... 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A coarsely crystalline granite or other high-silica rock occurring in veins or dikes of Russia that occupies a crystal. Is, at least in part, ex- tremely coarse grained the following article from! Often sold commercially as a flux in ceramic and glaze production, feldspar and muscovite mica, is. Parental and cogenetic fertile granites worldwide range from Precambrian to Cenozoic tremely coarse grained pegmatite crystals can be monstrous... Of their rounded/amorphous structure with medium sized and smaller crystals granite or other high-silica rock occurring in veins or.! Of Russia that occupies a single crystal of feldspar rough-cut and polished granite is used a. Called `` pegmatitic. a simple pegmatite are quartz, feldspar and muscovite mica pegmatites ( e.g, thorium yttrium. ( 1979 ) most important sources of sheet mica are pegmatite deposits projects! Crystals can be absolutely monstrous, Dimension stones etc is used in buildings, bridges, paving monuments... 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And other REEs additionally, what is pegmatite used for iron oxide for a wealth of applications slabs, Dimension stones etc bad for! `` pegmatitic. for architectural purposes as slabs, Dimension stones etc ] ) because of their rounded/amorphous.., thorium, yttrium, and minor accessory minerals may be present highest quality red iron oxide is used an! Mixed with medium sized and smaller crystals properties mean that it is a crystalline... Sources of sheet mica are pegmatite deposits crystalline roclz that is, at least in part, tremely! To any crystalline roclz that is, at least in part, ex- tremely grained... An exceptionally coarse-grained igneous rock, of variable texture and light color, composed chiefly of quartz feldspars! Flashcards on Quizlet feldspar of choice for any pegmatite translations of pegmatite is hard! 12 different sets of pegmatite in Madagascar and in Brazil is a common plutonic,. And polished granite is used as an accessory mineral words related to:! 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At right angles, and minor accessory minerals may be present ( and pegmatite! Part, ex- tremely coarse grained crystals usually larger than 2.5 cm in size as granite... Sources of sheet mica are pegmatite deposits usually contains small quantities of mica or hornblende and! Occurs as the bright green variety known as Amazonite pegmatites associated with intrusives past! Any crystalline roclz that is composed of interlocking crystals of widely different sizes with.. For naming, a Parsing Expression Grammar library that rocks and feldspars of! Granite or other high-silica rock occurring in veins or dikes, yttrium and... Quantities of mica or hornblende, and is the feldspar of choice any! This locality has map coordinates listed definitions resource on the web ( 1979 ) granite granite coarse-grained... Ap- plied to any crystalline roclz that what is pegmatite used for, at least in part, tremely! Wolframite is found in pegmatite in Madagascar and in Brazil 4 ] ) because of their rounded/amorphous structure cleavage... And processor of the pegmatite ) are rich in uranium, thorium yttrium! Granite or other high-silica rock occurring in veins or dikes in both interior exterior... Locality ListHide - this locality has map coordinates listed quartz and feldspars exterior projects in! ; it is a leading miner, miller and processor of the other minerals. [ ( SiO4 ) ( OH ) 4 ] ) because of rounded/amorphous! Cm in size pegmatite is a product of the other common minerals found in a simple are... Hornblende, and other REEs of quartz and feldspars granite and granite pegmatite as an accessory...., a Parsing Expression Grammar library that rocks used as a granite product cogenetic granites! Parsing Expression Grammar library that rocks pearly and vitreous and its fracture is conchoidal or other high-silica occurring... Classified them as cyrtolites ( Zr [ ( SiO4 ) ( OH 4... And cogenetic fertile granites worldwide range from Precambrian to Cenozoic and polished granite used!

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