anorthite
From: The Columbia Encyclopedia, Sixth Edition
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Date: 2008
anorthite : see feldspar .
Author not available, ANORTHITE.,
The Columbia Encyclopedia, Sixth Edition 2008
The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press
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The plagioclases.(UPDATES)(Brief article)
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... of a group name; the terms albite and anorthite are valid mineral species names with ... being the sodium-dominant member and anorthite the calcium-dominant one; andesine and ... bytownite and labradorite are varieties of anorthite. I applaud this resolution because I ...
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... micrograph of a buildup sample showing anorthite (yellow), corundum (red) and hercynite ... buildup. (25x) PHOTO : CL micrograph of anorthite fibers (yellow) and corundum (red) crystals ... liquid resulting rapid crystallization of anorthite. (25x) PHOTO : A CaO-[Al.sub.2][O.sub ...
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... sub.2]O), is a sodium or soda feldspar. Anorthite, containing at least 12.5% calcium (20 ... sub.8] Nepheline (Na,K)AISi[O.sub.4] Anorthite CaA[I.sub.2]S[i.sub.2][O.sub.8] Refractive ... Nepheline 1.54 2.60 - 2.65 5 1/2 - 6 Anorthite 1.58 2.76 6 Table 2 / Coatings Grades ...
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Silvialite.(Brief Article)
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... Queensland, Australia. Occurrence: In upper-mantle garnet-granulite xenoliths in olivine nephelinite. Associated minerals are: anorthite and albite (given as plagioclase, [An.sub.70] and [An.sub.45], respectively), calcite, pargasite, diopside, pyrope, spinel ...
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... and 51% An in outer core) and constant anorthite content in the mantle (27%-30% An). Mafic ... characterized by complex zonation. The poor in anorthite (29-33%) cores are surrounded by mantles richer in anorthite (43%). Anorthite content decreases again ...
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... amount of iron oxide also is pre sent. ANORTHITE. A calcium feldspar. (See FELD-SPAR ... microcline), soda spar (albite), lime spar (anorthite), and lime-soda spar (oligoclase, andesine ... and soda feldspars always contain some anorthite (lime spar). Feldspar is found in practically ...
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... amount of iron oxide also is present. ANORTHITE. A calcium feldspar. (See FELDSPAR ... microcline), soda spar (albite), lime spar (anorthite), and lime-soda spar (oligoclase, andesine ... and soda feldspars always contain some anorthite (lime spar). Feldspar is found in practically ...
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... amount of iron oxide also is present. ANORTHITE. A calcium feldspar. (See FELDSPAR ... microcline), soda spar (albite), lime spar (anorthite), and lime-soda spar (oligoclase, andesine ... and soda feldspars always contain some anorthite (lime spar). Feldspar is found in practically ...
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Materials handbook. (Refractories/Traditional/Advanced Ceramics)
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... amount of iron oxide also is present. ANORTHITE. A calcium feldspar. (See FELDSPAR ... microcline), soda spar (albite), lime spar (anorthite), and lime-soda spar (oligoclase, andesine ... and soda feldspars always contain some anorthite (lime spar). Feldspar is found in practically ...
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... amount of iron oxide also is present. ANORTHITE. A calcium feldspar. (See FELDSPAR ... microcline), soda spar (albite), lime spar (anorthite), and lime-soda spar (oligoclase, andesine ... and soda feldspars always contain some anorthite (lime spar). Feldspar is found in practically ...
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... is partly replaced by Alrich clinopyroxene (Cpx II) and anorthite. A new Ca-rich garnet Gr-II (Py^sub 10^, Grs^sub 65^,Alm ... granulite, garnet is replaced by Al-rich clinopyroxene and anorthite amphibole and kyanite by anorthite, spinel and locally. Garnet contains rutile needles that ... inclusions in ...
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... to a parachute returned the samples to Earth in January, landing in the Utah desert. The samples include minerals such as anorthite, which is made up of calcium, sodium, aluminum and silicate; and diopside, made of calcium, magnesium and silicate. Such minerals ...
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... area shown in Fig. 4, where bytownite-anorthite is replaced by andesine (Tanner 1976 ... climaxing in the production of an anhydrous anorthite-garnet-pyroxene-bearing rock virtually ... Powell el at. (1981) concluded that anorthite composition in the calc-silicate rocks ...
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