How To Use Monazite In A Sentence
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I dutifully explained that the smoky spots were probably the result of natural irradiation caused by many tiny radioactive mineral grains, possibly monazite or xenotime.
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Monazite clusters occur in a variety of host minerals, including cordierite, quartz, biotite and andalusite.
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All monazite grains are located in the rock matrix, which consists of quartz, muscovite, biotite, epidote, chlorite, plagioclase, potassium feldspar and garnet with a granoblastic texture.
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It is noted chiefly for the hiddenite gem, fine emeralds and beautiful specimens of quartz crystals; but gold, monazite and other minerals are found.
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The monazite grains are located along fractured mica foliation planes that run along the base of larger metamorphic minerals (i.e. staurolite and garnet).
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Concentrations of the REE's have been identified within phosphate minerals from the project such as carbonated monazite, dahllite, apatite and fluorapatite genetically associated with the alkalic sill complex.
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The sample contains graphite, but no monazite was found in the heavy mineral concentrates.
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Eighteen analyses of detrital zircon and one of monazite were carried out for the late Silurian sandstone.
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Textural relationships and geological context need to be determined to distinguish these burial-related phases from monazites ascribed to granite metasomatism or low-grade metamorphism.
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June saw them undertaking the long journey to the Glenover phosphate deposit in the Northern Province to look for apatite, monazite, pyrite, magnetite, calcite, anatase, and rutile.
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Concentrations of the REE's have been identified within phosphate minerals from the project such as carbonated monazite, dahllite, apatite and fluorapatite genetically associated with the alkalic sill complex.
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Having determined the age of the Ballachulish Igneous Complex, we now examine the behaviour of the U-bearing accessory minerals baddeleyite, zircon and monazite in the Ballachulish metamorphic aureole.
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Other accessory minerals are apatite, zircon, monazite, huttonite and rare xenotime, uraninite and betafite.
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It left with 23,000 tons of sifted monazite, bound ultimately for the airship works at Cardington.
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Monazites were identified in thin section by their very bright backscattered electron images and verified by energy-dispersive spectrometry.
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Detrital monazite will not survive sedimentary recycling as well as zircon, so it provides a better estimate of the age of the most recent terrane erosion.
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Monazite GS - 8-2, a sub - to anhedral grain, is c.70 m × 100 m, located between two apatite grains.
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Kyanite, microcline, zircon, monazite and opaque minerals are variably present with epidote, actinolite and chlorite being present as secondary alteration minerals.
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Initial monazite growth at staurolite facies conditions (c.525 deg C, Smith & Barreiro 1990) takes place during prograde conditions.
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Wing et al. suggested that cordierite or staurolite could play the same role as andalusite or kyanite in a monazite-producing reaction.
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Metamorphic xenotime and monazite were identified in 13 pelite samples that also contain garnet, staurolite, kyanite, quartz, ilmenite and micas, as well as in four sandstone samples.
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Zircon, monazite, xenotime and white mica were extracted from the sample.
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The Atomic Energy Commission is concerned mainly with fundamental research work at the universities and in the Tata Institute of Fundamental Research in Bombay and with problems associated with the discovery of uranium and the processing of thorium from the huge monazite sand deposits of southern India.
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The most common ores of holmium are monazite and gadolinite.
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I dutifully explained that the smoky spots were probably the result of natural irradiation caused by many tiny radioactive mineral grains, possibly monazite or xenotime.
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Textures of kyanite, xenotime and monazite, and some staurolite and biotite, indicate that peak metamorphic mineral growth occurred after D 2 deformation.
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It is found with other rare earth elements in minerals such as monazite, cerite, gadolinite, xenotime, and euxenite.
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They are found in minerals such as monazite and bastnasite, the main sources of which are in China and the USA.
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Monazite clusters occur in a variety of host minerals, including cordierite, quartz, biotite and andalusite.
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The apparent critical temperature between 560 to 600°C for monazite growth at Ballachulish is broadly consistent with several previous studies of monazite in prograde metamorphic sequences.
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Petrographical evidence establishes that peak thermal metamorphism produced largely random growth of kyanite, staurolite, biotite, monazite and xenotime that overprinted those fabrics.
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The main source of titanium in the country are beach sands that contain monazite and ilmenite.
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Sillimanite, cordierite, apatite, monazite and zircon are also present.
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The abundance of these elements in the parental magma leads to the formation of less-common minerals such as apatite, beryl, topaz, amblygonite, lepidolite, spodumene tantalite, columbite, monazite, zircon, and uraninite.
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The unusual age zonation is probably linked to the mineralogical association of monazite and apatite during metamorphic reactions.
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Finally, a U-Pb isotopic study of zircon and monazite from khondalite and sapphirine granulite was undertaken as a more reliable method for dating the metamorphic event.
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All monazite grains are located in the rock matrix, which consists of quartz, muscovite, biotite, epidote, chlorite, plagioclase, potassium feldspar and garnet with a granoblastic texture.
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However, the increased abundance of monazite in Zones III, IV and V relative to Zone I and its occurrence in clusters rather than as embayed grains arc suggestive of new growth.
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Other accessory minerals are apatite, zircon, monazite, huttonite and rare xenotime, uraninite and betafite.
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Lower amphibolite-grade regional metamorphism predating intrusion of the Ballachulish Igneous Complex may have resulted in some monazite growth.
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Sillimanite, cordierite, apatite, monazite and zircon are also present.
