Results 1 to 10 of about 10,620 (270)
SrZnSi3O8, a synthetic member of the feldspar group [PDF]
Acta Crystallographica Section E: Crystallographic CommunicationsStrontium tecto-zincotrisilicate, SrZnSi3O8, is a synthetic member of the feldspar group with monoclinic symmetry (space group P21/n, Z = 4). In comparison with the alkali feldspars, the aluminium-richest tetrahedral site in these minerals is completely ...
Matthias Weil
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Ice nucleation properties of K-feldspar polymorphs and plagioclase feldspars [PDF]
Atmospheric Chemistry and Physics, 2019 The relation between the mineralogical characteristics of size-selected feldspar particles from 50 to 800 nm and their ability to act as ice-nucleating particles (INPs) in the immersion mode is presented.
A. Welti +3 more
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PETROGRAPHY AND MICROTEXTURAL CHARACTERISTICS OF GRANODIORITE FROM WASIMI, SOUTHWESTERN NIGERIA [PDF]
Earth Science Malaysia, 2020 Rock samples of granodiorite from Wasimi were studied in detail to determine the minerals, mineral associations and the different micro-texture present in order to unravel the processes that were involved during the cooling of the magma.
E. J. Oziegbe +2 more
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Бюллетень Почвенного института им. В.В. Докучаева, 2023 The structure of the soil cover at the territory of the clayey semidesert of the Northern Caspian Sea is represented by triparted soil complex and peculiar soils like solod.
E. B. Varlamov +4 more
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Earth and Space Science, 2023 The MErcury Radiometer and Thermal Infrared Spectrometer instrument onboard the BepiColombo spacecraft is designed to investigate Mercury’s surface in the mid‐infrared (mid‐IR). Based on MESSENGER data and modeling, Mercury is thought to be evolved under
Maximilian P. Reitze +8 more
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Disorder-enhanced luminescence kinetics in volcanic feldspars [PDF]
EPJ Web of Conferences, 2020 A granitic feldspar is well-ordered and has a stable thermoluminescence signal enabling its dating with high reliability. In contrast, a volcanic feldspar (sanidine) exhibits a slight cristallographic disorder and an anomalously fast fading of the ...
Bringuier Eric
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Not all feldspars are equal: a survey of ice nucleating properties across the feldspar group of minerals [PDF]
Atmospheric Chemistry and Physics, 2016 Mineral dust particles from wind-blown soils are known to act as effective ice nucleating particles in the atmosphere and are thought to play an important role in the glaciation of mixed phase clouds.
A. D. Harrison +9 more
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Madras Agricultural Journal, 2012 The work was carried out with different parent materials to identify various clay materials in Reniguntal mandal of Chittoor district, Andhra Pradesh. The soils had pH 6.2 to 8.96, clay 3.74 to 46.58 % and CEC 2.16 to 43.63 cmol (p + ) kg -1 . In general,
S. Selvaraj and M.V.S. Naidu
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GEOLOGICAL STUDY OF EL-ESH GRANITIC PLUTON TO ELUCIDATE THE SUITABILITY OF ITS PLACER FELDSPARS FOR CERAMIC INDUSTRY IN EGYPT [PDF]
Delta Journal of Science, 2007 Two mica syenogranites of Gabal El Esh being emplaced into Dokhan volcanics. These leucogranites are peraluminous in composition, Fe-rich sub-alkaline with low contents of Ba and high contents of Rb and k2O.
ASHRAF F. MOHAREM, REMON R. AYOUB
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PETROGRAPHY AND MINERAL CHEMISTRY AT WADI BALLI AREA, CENTRAL EASTERN DESERT, EGYPT [PDF]
Delta Journal of Science, 2008 The Gattar granites are composed mainly of quartz and feldspars as essential minerals and biotite hornblende, zircon, apatite and sphene as accessory minerals, some secondary minerals as epidote, chlorite and sericite are found.
Joseph M. Samaan +3 more
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