50 eV O+ ion induced deposition of tin dioxide using tetramethyltin by Satoru Yoshimura, Takae Takeuchi, Masato Kiuchi

“…The aim of the present study was to deposit tin oxide films on Si wafers or quartz crystal microbalance plates acting as substrates, using low-energy ion beams. …”
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COARSE-CRYSTALLINE PYRITE OF CENTRAL TIMAN by R.I. Shaybekov, M.Yu. Sokerin, V.G. Kotelnikov, A.Yu. Lysyuk, G.V. Ignatyev, E.M. Tropnikov

“…It contains galena, thorite, zircon, monazite, rutile, chlorite, muscovite, quartz, albite, apatite and calcite inclusions. The unit cell parameter of pyrite vary from 5.4137 ± 0.0002 to 5.4187 ± 0.0010 Å and correspond to an ideal pyrite. …”
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INFLUENCE OF PURIFICATION PROCESS ON THE CHARACTERISTICS OF ROMANIAN CALCIUM BENTONITE by ANA-MARIA GEORGESCU, FRANÇOISE NARDOU, DENISA NISTOR ILEANA

“…., Satu Mare has the following mineralogical composition: 57 % montmorillonite, 40 % cristobalite, and 3 % quartz. Due to the relatively high percentage of impurities in natural calcium bentonite, we decided to purify the raw material, in order to improve the quality of montmorillonite. …”
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GEOCHEMICAL FEATURES OF HOST ROCKS OF THE POROKHOVSKOE TUNGSTEN DEPOSIT (SOUTH URALS) AND THEIR ROLE IN CONCENTRATION OF ORE MATTER by K.P. Maltseva, E.V. Belogub, K.A. Novoselov, D.A. Rogov, R.R. Irmakov

“…Statistical samplings were formed for various types of host rocks: andesites and their tuffs, shales, metasomatites (including sericite-quartz, epidote and chlorite-bearing) and skarns. …”
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Fluorine-rich hydrogarnet, prehnite and pumpellyite in monzodioritic basement of the Rhine Rift Valley produced by in-situ low-grade metamorphism at 200 °C and 5 km depth by Kurt Bucher, Moritz Hofer, Florentin Ladner, Ingrid Stober

“…The recovered core material from 4.9 km depth shows coarse grained biotite-hornblende quartz-monzodiorite from the Variscan basement. The primary igneous rock is locally altered and contains prehnite, pumpellyite, mica and chlorite as major alteration products. …”
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Investigation and evaluation of the efficiency of palm kernel oil extract for corrosion inhibition of brass artifacts by Mohamed M. Megahed, Eman AbdElRhiem, Wesam Atta, Nabil Abdel Ghany, Mohamed Abdelbar

“…The analyses confirmed the crescent was made of a brass alloy (Cu–Zn) and formed by hammering, with corrosion layers composed primarily of cuprite and clinoatacamite, covered by dust containing calcite and quartz. The corrosion protection efficiency of the PKO was evaluated using brass coupons, simulating the artifact of the alloy. …”
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Volatile Organic Compounds (VOCs) Distribution from PCB Waste and Vitrification by Reacting with Flux Agents by Raynard Christianson Sanito, Sheng-Jie You, Hsi-Hsien Yang, Ya-Fen Wang

“…The resins to the flux agents — shell powder, limestone and quartz sand ratio of 50:50 and 25:75 gave the best results for the vitrification compared to the ratio of 75:25 and control (absence of flux agent). …”
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KUKHARENKOITE-(Ce) AND ITS MINERAL ASSEMBLAGE IN PEGMATITES OF THE VISHNEVYE MOUNTAINS (SOUTH URALS) by V.I. Popova, M.A. Rassomakhin, V.A. Popov, A.M. Kuznetsov, S.M. Lebedeva

“…Kukharenkoite-(Ce) forms small inclusions up to 3–7 µm in anatase and quartz. Raman spectrum of the studied kukharenkoite-(Ce) is similar to spectrum no. …”
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PM10 Source Identification: A Case of a Coastal City in Colombia by Leandro Gómez-Plata, Dayana Agudelo-Castañeda, Margarita Castillo, Elba C. Teixeira

“…Abstract This paper assesses the spatial variation of EC, OC, major, and trace elements in an industrialized coastal city, allowing identification and tracers of PM10 emission sources. 83 samples (24 h average) were collected on quartz filters during the dry season using high-volume samplers. …”
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Micro-Characterization of Indoor Deposited Particles Using FTIR, SEM-EDS, and XRD Techniques: A Case Study of a University Campus, Bangladesh by Mamun Mahmud, Kazi ABM Mohiuddin

“…The average crystallinity of studied atmospheric particles was found to be a minimum of 27.3% at RH and a maximum of 64.5% at NAB sites and the corresponding crystalline size was 11.10 nm and 42.92 nm respectively. Quartz mineral in the inorganic fraction of atmospheric particles was found predominantly in every sample which most likely originates from soil erosion, construction activities and vehicular emissions. …”
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MINERALOGICAL AND GEOCHEMICAL FEATURES OF HEAVY CONCENTRATES FROM CREEKS OF THE NORTHWESTERN END OF THE OKHOTSK TERRANE (KHABAROVSK KRAI) by М.А. Pavlova, D.I. Smirnov, D.А. Guskov, S.V. Petrov, M.A. Rassomakhin, A.Yu. Nefyodova

“…Native gold grains in placers are yellow, small, mostly weak and medium-rounded, often with inclusions of quartz, feldspar, pyrite, iron oxides and hydroxides, and zircon. …”
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MINERAL FORMS OF TUNGSTEN AT THE POROKHOVSKOE AND YUGO-KONEVSKOE DEPOSITS (SOUTH URALS) by D.A. Rogov, E.V. Belogub, K.A. Novoselov, M.A. Rassomakhin, R.R. Irmakov, A.E. Chugaev

“…The veins are mainly composed of quartz and muscovite with subordinate calcite, dolomite and fluorite, rare chlorite and amphibole and accessory zircon, apatite and uraninite. …”
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Effect of temperature and time on purity, morphology and phase transformations of silica from rice husk by Md. Tariqul Islam, Md. Faruk Hossen, Md. Kudrat-E-Zahan, Md. Ali Asraf, C.M. Zakaria, Hayatullah, Md Shohel Rana

“…X-ray Diffraction (XRD) data indicated that rice husk ash produced silica of different silica phases such as amorphous and crystalline such as quartz, tridymite, cristobalite, wollastonite phase, etc. …”
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Issues with the Organic and Elemental Carbon Fractions in Recent U.S. Chemical Speciation Network Data by Philip K. Hopke, Yunle Chen, David Q. Rich, John G. Watson, Judith C. Chow

“…Abstract The carbon fractions of organic (OC1, OC2, OC3, OC4, OP) and elemental (EC1, EC2, and EC3) carbon obtained from IMPROVE (Interagency Monitoring of PROtected Visual Environments) thermal/optical carbon analysis of quartz-fiber filters have been implemented to help distinguish spark-ignition engine exhaust particulate matter (PM) contributions from those of heavy-duty diesel exhaust. …”
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THORIUM, URANIUM AND RARE EARTH MINERALIZATION IN ROCKS OF THE UGAKHAN GOLD DEPOSIT, BODAIBO ORE REGION by E.V. Shepel, N.R. Ayupova, M.A. Rassomakhin, P.V. Khvorov

“…The rocks consist of quartz, feldspar (albite, orthoclase), Fe-Mg chlorite, mica (muscovite, sericite) and carbonates (calcite, dolomite, ankerite) and accessory titanite, rutile, tourmaline, zircon and apatite. …”
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Comparison of Airborne Bacterial Populations Determined by Passive and Active Air Sampling at puy de Dôme, France by Kevin P. Dillon, Romie Tignat-Perrier, Muriel Joly, Sydonia N. C. M. Grogan, Catherine Larose, Pierre Amato, Gediminas Mainelis

“…., France) alongside an active PM10 sampler (~1000 L min−1) collecting aerosols on a quartz fiber filter. The diversity of the airborne bacteria captured by both samplers across six weekly sampling periods was examined by 16S rRNA gene amplicon sequencing. …”
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Characterization and enhanced performance of Ivorian clays as potential modifiers in carbon paste electrodes by Legré Paul Gauly, Mariame Coulibaly, Ségnéninhinténin Bakary Soro, Koffi Siméon Kouadio, Seiny Roger N’Dri, Ali Sanou, Albert Trokourey

“…Our analyses revealed that these clays are primarily composed of kaolinite, quartz, illite, and goethite. In addition, to enhance the properties of the clay, sodium ions were successfully incorporated into clays, resulting in higher sodium content and an increased specific surface area. …”
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Brittleness evaluation of main coal seams in Permian Taiyuan-Shanxi formations, Baode block, Ordos Basin: based on a convolutional neural network method by Qingfeng ZHANG, Ziling LI, Jikun ZHANG, Shuai HAO, Xiaoguang SUN, Yanjie SHANG, Yun ZUO

“…Differences in mineral composition affected rock brittleness. Higher quartz content was linearly correlated with greater elastic modulus and brittleness index.…”
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Research on Deterministic Ring Removal Method for Full-Aperture Double-Sided Polishing of Large Aperture Optical Components by Yifan Bai, Bo Xiao, Chunyang Wang, Ke Chen, Linzhe Deng, Siling Huang, Xuelian Liu

“…The developed process parameter decision assistance system was used to make process parameter decisions for two 430 * 430 mm fused quartz components, achieving the removal of the target ring of the components. …”
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Insights into the Regional Transport and Local Formation of Secondary Organic Aerosol in Delhi, India by Himadri Sekhar Bhowmik, Sachchida Nand Tripathi, Ravi Sahu, Ashutosh Kumar Shukla, Vipul Lalchandani, Shamitaksha Talukdar, Nidhi Tripathi, Lokesh Sahu

“…Abstract The organic carbon (OC) and elemental carbon (EC) content were measured from PM2.5 quartz filter substrates collected over 24 hours in Faridabad, a heavily polluted city in Delhi national capital region (NCR), during January–February 2018. …”
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