— However, the relative errors of biotite, glauconite and ferrorichterite were large because of their low concentrations and high variations within the sampled slurries. …

 — 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 ...

Furthermore, the presence of biotite (susceptibility ranging 873-3040 × 10 −6 ) and muscovite (susceptibility ranging 36-711 × 10 −6 ) in the FMC is reasonable due to their positive and high ...

 — 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 …

 — 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.

Crushed rocks and mine tailings containing biotite, K-feldspar and nepheline as K-bearing minerals were applied as K fertilizers in a series of 15 grassland field trials. A treatment …

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.

 — 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.

 — 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 …

 — The green dashed line is the ore body boundary (at lower grades of 0.2% Cu). The brown pentagon is the position of the sample containing primary biotite, the light brown pentagon is the position of the sample containing secondary biotite, and the red quadrilateral is the position of the sample containing vein-hosted biotite.

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 ...

 — 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 ...

According to the wide application of muscovite in various industries, many studies have focused on its fabrication. However, the process of its synthesis faces long-standing challenges mainly related to the elevated temperature and pressure ambient,

 — 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 …

 — 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.

 — 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, …

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 …

Download scientific diagram | Particle size distribution of the tailing sample by laser diffraction. from publication: Flotation of kaolinite from tailings of kaolin-washing plants by cationic ...

 — Mine tailings (MTs) are the materials dumped on a mining site after mineral extraction, containing scattered traces of residual minerals, dug-up soils, and a disturbed ecosystem. Abandoned and untreated MT can pose threats to the surrounding ecosystem due to the presence of various primary and secondary toxic components, such as …

 — 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

forward 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 ... biotite; oxidation; coal tailing; crystal structure 1. Introduction Biotite and muscovite are two phyllosilicate minerals within the mica family ...

 — 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 ...

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.

 — 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 ...

 — 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 ...

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 ...

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 ...

 — 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 …

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

A Novel OpenSystem Method for Synthesizing Muscovite from This research work aims at synthesizing muscovite through a straightforward and direct wet thermal o