... (or magnesium or sodium) in the system, swelling clays such as montmorillonite can be formed. In addition to weathering, hydrothermal alteration produces smectites at low temperatures (<160°C) through hydrolysis reactions of silicate phases (plagioclase, feldspar, pyroxene, olivine, volcanic glass, biotite...

... . Highly sensitive detection of sodium in aqueous solutions using laser-induced breakdown spectroscopy with liquid sheet jets . Optics Express , 29 , 5205 , https://doi.org/10.1364/OE.415308 Pearson , D. , Weindorf , D.C. et al. 2018 . Analysis of metal-laden water via portable X-ray...

... Al 3+ with Mg 2+ in one octahedral sheet, as is shown in Fig. 4 . The resulting negative charge is compensated for with six sodium ions between the clay sheets; the positions of these substitutions are shown in Fig. 4 . The chemical formula of the Na-montmorillonite model is Na 0.75 (Si 7.75 Al...

... the theoretical value of 8.72 wt% ( Table 2 ). The lower F concentrations may be due to analytical errors or O 2− substituting for 2 F – . Bastnäsite contains minor amounts of Ca (0.3–1.3 wt% CaO), which probably substitutes for La in the crystal structure. Sodium is below the detection limit in all the samples...

... O atoms) and possess a silicon Q 4 to Q 3 ratio of 2.5. 16 out of 32 terminal silanol groups are protonated, and the remaining groups compensate for the charge of the hydrated sodium cations. Bands of edge-sharing [Na(H 2 O) 6/1.5 ] octahedra are intercalated between the silicate layers extending...

... aluminum to the mobile cations of calcium, sodium, and potassium and is grounded in empirical and modeled geochemical data for mineral reactions that occur during hydrolysis. However, the CIA should be applied cautiously because it is a one-dimensional value that in the most complex situations...

...Yuriy Vodyanitskii; Tatiana Minkina; Inna Zamulina; Tatiana Bauer; Inga Zinicovscaia Abstract The influence of alkalinity and other factors on the content of microelements in soils developed on marine deposits is studied. Traditional indicators of exchangeable sodium percentage do not demonstrate...

... – blue, Be – green, Al – magenta, Na – yellow, H – white. Representative occupants are shown in the channels: Na + , Type I H 2 O (lower right), and Type II H 2 O (upper left). From Henry et al . (2021) . beryl crystallography water sodium mineralogy crystal chemistry emerald aquamarine...

... with pH (Figure 11 (b)). In addition, Figures 11 (c) and 11 (d) show that sodium-type and bicarbonate-type groundwater is also characterized by high fluoride content. To sum up, while being subjected to SWI, F − also increases through evaporation and mineral weathering, indicating that SWI, mineral...

... in patients with bone diseases. Manganese (Mn) might be a good substitutional element candidate because of its regulation process of bone remodeling for controlling osteo-cellular activities. However, Mn strongly inhibits OCP formation. This study demonstrates that the sodium (Na)-induced OCP formation...

...) exposure; their potential interaction with nutrients is the main concern limiting their use, however. The objective of the present study was to determine the safety of a dietary sodium-bentonite (Na-bentonite) supplement as a potential AF adsorbent, using juvenile Sprague Dawley (SD) rats as a research...

... . 1982 , Kónya & Szakáll 2011 ), and the USA ( Tealdi & Tschernich 1984 ). In Japan, Matsuyama et al . (2006) described garronite-Ca from Kuniga, Oki Islands, Shimane Prefecture. Sodium-rich garronite has been reported to occur with the other zeolites natrolite, gmelinite, and gonnardite...

... of a regional fracture zone affected by leaching of aluminosilicates and sulfide oxidation; (3) waters of a regional fracture zone dominated by sodium aluminosilicates in the fracture filling (long-term interaction in the water–rock system), affected by continental salinization; (4) regional fracture zones...

... heat capacity measurements on zinc and sodium zeolite A from 1.8 to 300 K and compare the heat capacity of water in sodium zeolite A with that of water in other zeolites. The heat capacity of zeolitic water varies significantly depending on the hydration level and identity of the host zeolite, and more...

... silicon st 2.1000 1.8405 × 10 –6 3.3020 Tetrahedral aluminum at 1.5750 1.8405 × 10 –6 3.3020 Octahedral magnesium mgo 1.3600 9.0298 × 10 –7 5.2643 Octahedral iron feo 1.575 9.039× 10 –7 4.9058 Aqueous sodium ion Na 1.0 0.1301 2.3500 ClayFF is a non-bonded...