A Novel Open-System Method for Synthesizing Muscovite from a Biotite
This research work aims at synthesizing muscovite through a straightforward and direct wet thermal oxidation of an ash sample produced from biotite-rich coal tailings. ... Muscovite The crystallographic study and lattice parameter calculations revealed that the starting material from a Biotite-Rich Coal Tailing. and product peaks matched to ...
Mining tailings as raw materials for reaction-sintered aluminosilicate
— The samples do not represent the whole mining tailings area of their origin, but only the shallow tailings at one sampling point. Surface of the tailing dumpling may differ from the overall composition of the tailing deposit. ... FMT1 contained 6% biotite, which is a Fe-rich mineral, which could partly explain the presence of Fe in the mullite ...
Laky tailings dam: sampling directions and …
Quartz, calcite, feldspars, kaolinite, mica (biotite or sericite), and chlorite were determined as predominant minerals. Dolomite, amphibole, and johansenite are presented in smaller quantities.
Field photographs (A) Tailing dumps of …
Download scientific diagram | Field photographs (A) Tailing dumps of greisenised granite, quartz-mica-wolframite veins and pegmatite on eastern slope of Rewat Hill; Different rock fragments in ...
Rhizosphere Drives Biotite-Like Mineral Weathering and
— Overall, the study has elucidated the rhizosphere effects on tailing mineral (biotite dominant) weathering and secondary Fe-Si mineral formation, justifying pioneer plant roles in eco-engineering ...
Critical Minerals from Post-Processing Tailing. A Case …
— Mapping of minerals using SEM-BSE: (A) Ilmenite-rutile tailing (Sample Bngk 27); (B) monazite tailing (Sample Bngk 21). In all the samples examined, subordinate amounts o f following minerals have ...
Effect of metal ions on the flotation separation of biotite …
— Metal cations have great effects on the flotation of silicate minerals whereas the interaction mechanism is unclear. Single mineral flotation demonstrated that the recovery of biotite rose to 94.69% and 96.41%, and that of quartz declined to 1.21% and 2.01% after introducing small amounts of Ca 2+ and Mg 2+, respectively.Artificial mixed …
Drainage chemistry of mine tailings from a carbonatite …
— Detailed field sampling and laboratory methods were used to characterize the hydraulic properties of the tailings, their bulk chemistry, mineralogy, pore water and …
A Novel Open-System Method for Synthesizing …
and direct wet thermal oxidation of an ash sample produced from biotite-rich coal tailings. For this purpose, the lab ash powder was mixed with 35% H 2 O 2 at the room temperature of 25 C while
Source and Migration Pathways of Heavy Metals in Soils …
— The exploitation of iron ore could cause heavy metals pollution in the soils, which threatens the ecosystem and human health. In this study, soil, stream sediment, tailings, rock, and atmospheric deposition samples were collected from an iron mine in Baotou City. The concentrations of As, Cd, Cr, Cu, Hg, Ni, Pb, Zn, Al2O3, CaO, K2O, …
Biotite as a petrogenetic discriminator: Chemical insights from …
— Biotite major element compositions from EPMA are reported as oxides and recalculated based on 22 oxygen atoms (Appendix A). Biotite rare and trace element data from LA-ICP-MS are reported in ppm (n ~ 120; Appendix A). 4. Biotite-muscovite-garnet associations in Iranian igneous and metamorphic samples
Plant available potassium in rocks and mine tailings with …
Crushed rocks and mine tailings with K-feldspar, biotite and nepheline as their main K-bearing minerals were tested as K-fertilizers in a pot experiment with barley.
Kinetics and Mechanism of Leaching Potassium from Biotite …
— Semantic Scholar extracted view of "Kinetics and Mechanism of Leaching Potassium from Biotite in H 2 SO 4 Solution" by Xi Ma et al. ... Leaching of zinc from a lead-zinc flotation tailing sample using ferric sulphate and sulfuric acid media. Tahereh Asadi Asghar Azizi Jae-chun Lee M. Jahani. Materials Science, Environmental Science. 2017; 38.
Self-Sustaining Smoldering to Construct Tailings-Based Tech …
— Overall, the study has elucidated the rhizosphere effects on tailing mineral (biotite dominant) weathering and secondary Fe-Si mineral formation, justifying pioneer plant roles in eco-engineering ...
A Novel Open-System Method for Synthesizing Muscovite from a Biotite
This research work aims at synthesizing muscovite through a straightforward and direct wet thermal oxidation of an ash sample produced from biotite-rich coal tailings. For this purpose, the lab ash powder was mixed with 35% H2O2 at the room temperature of 25 °C while stirring at 480 rpm. ... "A Novel Open-System Method for Synthesizing ...
Low Energy Process Development for Chibuluma Copper …
— XRD pattern for the as-received sample is shown in Fig. 2 from which high-intensity peaks for quart can be observed. The other XRD peaks in the material are biotite (K(Mg,Fe) 3 AlSi 3 O10(F,OH) 2) and orthoclase (KAlSi 3 O 8). The intensity peaks for copper-bearing minerals could not be observed as they are below the detection limit of …
Biotite
Biotite in a very fine-grained andesitic rock in contact with marginal granitic rock. Sample viewed with crossed polarising filters. Locality: High Cantle above Low Bleakhope, Cheviot Hills, Northumberland. This biotite crystal exhibits 'kink banding', a characteristic that can be produced by strong tectonic deformation.
Rhizosphere Drives Biotite-Like Mineral …
— Among the three plant species, Sorghum spp. (Gramineae plant) root developed most extensively in the tailings, possibly leading to more efficient mineral weathering and secondary mineral formation than …
XRD Analysis of Mica Samples – PhysicsOpenLab
— Like other mica minerals, biotite has a highly perfect basal cleavage, and consists of flexible sheets, or lamellae, which easily flake off. It has a monoclinic crystal system, with tabular to prismatic crystals with an obvious pinacoid termination. The images below show a sample of mica biotite, and a sheet subjected to X-ray diffraction.
Biotite
Biotite Monoclinic K2(Mg,Fe2+)6-4(Fe3+,Al,Ti)0-2[Si6-5Al2-3O20](OH,F)4Biotite, also known, as 'black mica' is a rock-forming femic phyllosilicate that occurs in several igneous and metamorphic rocks. The mineral was named in honor of the French scientist Jean-Baptiste Biot, who devoted his life
Field biotite weathering rate determination using U-series
— The weathering rate, R, was then calculated as follows: (3) R = m i-m f M T × S where m i and m f are the initial and final mass of the biotite per g of sample respectively, M is the molar mass of biotite, calculated from structural formulae of the studied biotite established by Mareschal (2008) (455 g·mol −1), T is the weathering duration ...
Analysis of sulfides in whole rock matrices by elemental …
— However, erratic results are obtained for mixtures of reference sulfide and pyroxene, amphibole, or biotite. These minerals may suppress sample peaks, cause extreme peak tailing, and prohibit isotope ratio measurements. ... Note the suppressed height and extreme tailing of the sample peak. In our laboratory, extreme peak tailing is …
Enhanced process route to produce magnetite pellet feed from copper tailing
— A complete characterization of the copper tailing sample was carried out as chemical and mineralogical composition and size distribution. The analytical procedures are depicted in Table 1. ... (30.5 wt%), biotite (21.3 wt%), garnet (10.4 wt%), quartz (9.5 wt%), and chlorite (7.5 wt%), totalizing 79.1 wt% of the total mass. Magnetite corresponds ...
Biotite
Biotite, usually dark green, brown, or black, has a pale brown color under plane-polarized light in this sample. It exhibits high interference colors in cross-polar light just as muscovite, but has a lower birefringence than muscovite. Biotite shows parallel extinction in cross polarized light, and has perfect cleavage in one direction.
Biotite
Biotite also occurs in metasomatic rocks. This skarn sample is composed of biotite with light green actinolite (Ca-Mg-amphibole). Hannukainen, Finland. Width of sample 9 cm. Tonalite. Black biotite, white plagioclase, gray quartz. Kaatiala, …
On-stream and quantitative mineral identification of tailing …
— However, the relative errors of biotite, glauconite and ferrorichterite were large because of their low concentrations and high variations within the sampled slurries. …
Scintillometer result of aluvial and tailing sample, Bangka.
Especially, Bangka Island is located in a tropical area with medium rainfall, around 2500 mm/year (Yusoff et al., 2013). This island was intruded by granite pluton with an altitude between 0 ->400 ...
Biotite thin section
Relief: Moderate positive Habit/Form: Euhedral crystals are not uncommon, are usually tabular parallel to (001), and have a roughly hexagonal cross section. Also found as micaceous or tabular grains, or grains with …
Rhizosphere Drives Biotite-Like Mineral …
— Pioneer plants play an important role in eco-engineering Fe ore tailings into soil for sustainable mine site rehabilitation. However, root-driven mineral weathering and secondary mineral formation remain …
A Novel Open-System Method for Synthesizing Muscovite …
— This research work aims at synthesizing muscovite through a straightforward and direct wet thermal oxidation of an ash sample produced from biotite-rich coal tailings. For this purpose, the lab ash powder was mixed with 35% H2O2 at the room …
Biotite as a recorder of an exsolved Li-rich volatile phase in …
— Pure biotite fractions were separated from bulk samples by crushing and handpicking under a binocular microscope. For in situ mineral analysis (all carried out at the Institute of Geochemistry and Petrology, ETH Zürich, Switzerland), biotites and groundmass glasses were embedded in epoxy, polished, and carbon coated prior to imaging using a …
Geochemical and mineralogical changes in magnetite Fe …
— The weathering of magnetite and biotite-like phyllosilicates were accelerated, resulting in increased concentrations of soluble Mg, K, Fe, Ca, and Si in porewater. ... Products, Netherlands) which were inserted vertically into the centre of the tailings profile. At each porewater sampling, equivalent amounts of DI water were added back into the ...
Assessment of Heavy Metals in Top Soil around a …
the uranium tailings on the ground surface in tailings pond (Elango et al., 2012; Brindha, 2012). There are ... pink biotite granite, grey hornblende biotite ... In the Figure 1: Study …
Clay-bricks from recycled rock tailings
— The detailed mineralogical and chemical composition of the granite tailing (GT), Aswan and Sinai kaolin tailings (AT and ST, respectively), are revealed from their XRD (not shown) and XRF which appear in Table 1.The GT sample is mainly composed of quartz (SiO 2) (pdf no. 46-1045), albite (NaAlSi 3 O 8) (pdf no 89-6426), orthoclase …