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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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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Impact of rock mineralogy on reactive transport of CO2 during carbon sequestration in a saline aquifer by Mohamed Gamal Rezk, Ahmed Farid Ibrahim

“…Various parameters, including CO2 plume migration, changes in pH, water density variations, mineral dissolution and precipitation, and porosity changes in the reservoir rock, are examined to understand the complex CO2–brine–rock interactions. …”
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Depth variations as effective indicators for strength variation of Najran granites, Najran region, Saudi Arabia by Ahmed Abd El Aal, Yahya Al Zamana, Turki Dunquwah, Omar Alsalmi, Jabir Hussain, Javed Iqbal, Moustafa Abdulrahim Mohamedsalih, Ahmed E. Radwan, Hezam Al-Awah

“…Igneous rocks of various types are used for various purposes; however, their use as building stones for construction is ubiquitous due to their durability, hardness, appearance, and availability. …”
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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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Crystal structure modulating performances for 213-nm GeO2 solar-blind photodetectors via DC reactive magnetron sputtering method by Chengming Wei, Jiabao Liu, Xinru Lan, Cheng Yang, Shuiping Huang, Dongdong Meng, Zhengwei Chen, Hongguang Duan, Xu Wang

“…However, the precise control of the crystal structure and optical property is a huge challenge due to close free formation energies of multiple phases, inhibiting the GeO2 based practical device applications. …”
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