Effect of Particle Shape on Mechanical Behaviors of Rocks: A Numerical Study Using Clumped Particle Model by Guan Rong, Guang Liu, Di Hou, Chuang-bing Zhou

“…Model parameters for simulation in PFC are obtained by triaxial compression test of quartz sandstone, and simulation of triaxial compression test is then conducted on four rock samples with different particle shapes. …”
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Study on the Performance of Expansive Subgrade Soil Stabilized with Enset Ash by Derara Neguse, Eleyas Assefa, S. M. Assefa

“…The mineralogical composition of expansive soil is identified by XRD, and the result shows that the expansive soil in the study area is mainly composed of quartz and montmorillonite, which separately take up 50% and 38.5% of the total air-dried sample, while the percentage of kaolinite was 11.5%. …”
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Feasibility of concentrating potassium minerals from Verdete ore by cell flotation by Laryssa Batista Christina Cordeiro, Michelly dos Santos Oliveira, Kátia Dionísio de Oliveira, Marcos Antônio de Souza Barrozo, Cícero Naves de Ávila Neto

“…The goal was to evaluate the flotation behaviour of the ore constituents (glauconite, muscovite, K-feldspar and quartz) relative to the use of different collectors (fatty acid soap obtained from rice oil, amine and oleic acid) and depressors (gelatinized cornstarch and sodium silicate). …”
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Narrowband, Visible-Blind UV-A Sensor Based on a Mg0.52Zn0.48O Film Deposited by Radio-Frequency Sputtering Using a ZnO-Mg Composite Target by Yuki Kohama, Takuya Nagai, Mitsuru Inada, Tadashi Saitoh

“…A narrowband, visible-blind ultraviolet photodetector (PD) for UV-A is fabricated using a Mg0.52Zn0.48O film that is formed on a quartz substrate by a radio-frequency sputtering technique using a ZnO-Mg composite target. …”
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Use-Wear traces on copper ore processing tools from Late Bronze sites of the Trans-Urals(use wear analysis) by Kostomarova Yulia V., Bukacheva Anastasia O., Molchanov Ivan V.

“…Pebbles and slabs from different types of stone (diorite, flint, silicite, porphyrite, quartzite, granite, quartz sandstone) were used as tools. As a result, use-wear traces on experimental tools were obtained, described in detail and analyzed. …”
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Thermal behavior of Zefreh dolomite mine (Central Iran) by Shahraki B.K., Mehrabi B., Dabiri R.

“…X-ray diffraction analysis of heat treated samples up to 750ºC indicates that dolomite structure changes into calcite. The increases in quartz content accelerated the mechanochemical deformation and amorphization of dolomite phase. …”
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The influence of nucleus dates waste and ceramic wastes in sustainable concrete by Radwa Defalla Abdel Hafez, Raghda Osama Abd-Al Ftah, Khaled Abdelsamie

“…Ten SEC combinations were prepared: 10%, 20%, and 30% of NDA, CWA, or a combination of both. After testing, quartz powder (Q.P) or silica fume (S.F.) can increase the UHPC by enhancing its mechanical characteristics. …”

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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Study on Local Brittleness of Rock Based on Multiple Linear Regression Method: Case Study of Shahejie Formation by Meng Cai, Yang Wang, Wanchun Zhao, Xiaodong Shi, Teng Li

“…The results showed that quartz, plagioclase, analcite, siderite, and pyrite were high brittle minerals while clay minerals were low brittle minerals. …”
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Frost Durability and Strength of Concrete Prepared with Crushed Sand of Different Characteristics by Ming-kai Zhou, Zhan-ao Liu, Xiao Chen

“…Lithology has no prominent influence on frost durability and compressive strength of CSC within the lithologies (dolomite, limestone, granite, basalt, and quartz) studied. Though compressive strength of CSC is a little higher than RSC under equal water to cement ratio, frost durability of CSC is no better than RSC especially for C30 CSC, and air-entraining agent is suggested for enhancing frost durability of C30 CSC exposed to freezing environment.…”
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Interaction and Adsorption of Hydrophobically Modified Polyacrylamide on Silica and Asphaltene Surfaces by Wenjie Zou, Zichuan Fang, Zhijun Zhang, Zhenzhen Lu

“…., P(AM-NaAA-C16DMAAC), on silica and asphaltene were investigated using surface force measurements, thermodynamic analysis and quartz crystal microbalance with dissipation (QCM-D) measurement. …”
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The Role of Liquid Fuels Channel Configuration on the Combustion inside Cylindrical Mesoscale Combustor by Achmad Fauzan Hery Soegiharto, I. N. G. Wardana, Lilis Yuliati, Mega Nursasongko

“…This research intended to investigate combustion of liquid fuel in 3.5 mm inner diameter quartz glass tube mesocombustor, based on liquid film evaporation by using heat recirculation. …”
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Physicochemical Characterization of Regional Clay: Application to Phenol Adsorption by Abdelouahed Amar, Ilyasse Loulidi, Abderrahim Kali, Fatima Boukhlifi, Chaimaa Hadey, Maria Jabri

“…The chemical analysis of this clay shows that the percentage of silicon and aluminium is quite high, and the percentage of calcium and iron is relatively high, so this material is rich in muscovite, quartz, and calcite. In addition to the presence of titanium dioxide (TiO2), which can give it a property of degradation of organic compounds under ultraviolet light, the pHPZC zero point of our material is 7.4. …”
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HEMATITE-CARBONATE ROCKS OF THE YUBILEYNOE MASSIVE SULFIDE DEPOSIT (SOUTH URALS): EVIDENCE OF REPLACEMENT OF SULFIDE CLASTS AND HYALOCLASTS by A.S. Tseluyko, N.R. Ayupova, D.A. Artemyev, M.A. Rassomakhin, V.A. Kotlyarov

“…The matrix of hematite-carbonate rocks consists of calcite with inclusions and aggregates of dolomite, chlorite, quartz and apatite. Late sulfide mineralization (pyrite metacrystals, aggregates and veins of chalcopyrite and sphalerite) is characteristic of both hematite-carbonate rocks after sulfide clasts and hyaloclasts.…”
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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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Material Weakening of Slip Zone Soils Induced by Water Level Fluctuation in the Ancient Landslides of Three Gorges Reservoir by Yu-Yong Jiao, Liang Song, Hui-Ming Tang, Yun-An Li

“…The results indicate that (1) the shearing strength of the slip zone soil dramatically decreased after one wetting-drying cycle and then gradually decreased until reaching a relatively stable state at the fourth cycle; (2) the plasticity index of the slip zone soil varied with increasing number of cycles and a variation process opposite to that of the strength value was observed; and (3) the clay mineral content in the slip zone soil increased and the calcite and quartz contents relatively decreased with increasing number of cycles. …”
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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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Solid Carbon Produced in an Inductively Coupled Plasma Torch with a Titan Like Atmosphere by D. Vacher, S. Menecier, M. Dudeck, M. Dubois, B. Devouard, E. Petit

“…Deposition of carbon is observed not only on the quartz tube outside the inductor but also on the ceramic protection of the torch injector. …”
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Relationship Between Thermal Conductivity, Mineral Composition and Major Element Composition in Rocks from Central and South Germany by Oliver Suft, Hannes Hagenauer, David Bertermann

“…Chemical composition significantly impacts thermal conductivity. Higher quartz and SiO₂ contents generally lead to increased thermal conductivity, while aluminum silicates, common in clay minerals, correlate with lower conductivity. …”
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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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