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Properties of the Elements and Inorganic Compounds
Published in W. M. Haynes, David R. Lide, Thomas J. Bruno, CRC Handbook of Chemistry and Physics, 2016
W. M. Haynes, David R. Lide, Thomas J. Bruno
Formula PtAs2 Mn3Al2Si3O12 ZnS CaTiSiO5 MgAl2O4 LiAl(SiO3)2 Cu2FeSn4 Fe2Al9Si4O22(OH)2 Na(NH4)H(PO4)4H2O Sb(Ta,Nb)O4 Sb2S3 NaCa2[Al5Si13O36]14H2O (K,Na,Ca)0.6(Fe,Mg)6Si8Al(O,OH)272H 2O Stolzite PbWO4 Struvite Mg(NH4)(PO4)6H2O Sulfur (orthorhombic) S8 Sylvanite (Ag,Au)Te2 Sylvite KCl Talc 3MgO4SiO2H2O Tantalite (Fe,Mn)(Ta,Nb)2O6 Tapiolite FeTa2O6 Tellurobismuthite Bi2Te3 Terlinguaite Hg2OCl Tetrahedrite (Cu,Fe)12Sb4S13 Thomsenolite NaCaAlF6H2O Thorianite ThO2 Thorite ThSiO4 Topaz Al2(SiO4)(F,OH)2 Torbernite Cu(UO2)2(PO4)28H2O Tourmaline Na(Mg,Fe,Mn,Li,Al)3Al6Si6O18(BO3)3 Tremolite Ca2Mg5Si8O22(OH)2 Trevorite NiFe2O4 Tridymite SiO2 TriphylliteLi(Fe,Mn)PO4 Lithiophyllite Troegerite (UO2)3(AsO4)212H2O Troilite FeS Trona Na3H(CO3)22H2O Turquois CuAl6(PO4)4(OH)84H2O Ullmannite NiSbS Uraninite UO2 Uvarovite Ca3Cr2Si3O12 Valentinite Sb2O3 Vanadinite Pb5(VO4)3Cl Variseite-Strengite (Al,Fe)(PO4)2H2O Vaterite CaCO3 Vermiculite (Mg,Ca)0.7(Mg,Fe,Al)6[(Al,Si)8O20] (OH)48H2O Vesuvianite Ca10(Mg,Fe)2Al4(Si2O7)2(SiO4)5(OH,F)4 Villiaumite NaF Wagnerite Mg2(PO4)F Wavellite Al3(OH)3(PO4)25H2O Wolframite Fe0.5Mn0.5WO4 Wollastonite CaSiO3 Wulfenite PbMoO4 Wurtzite ZnS Xenotime YPO4 Zeunerite Cu(UO2)2(AsO4)210H2O Zincite ZnO Zircon ZrSiO4 Zoisite Ca2Al3(SiO4)3OH Name Sperrylite Spessartite Sphalerite Sphene Spinel Spodumene Stannite Staurolite Stercorite Stibiotantalite Stibnite Stilbite Stilpnomelane Crystal system cubic cubic cubic monoclinic cubic monoclinic tetragonal monoclinic triclinic rhombohedral orthorhombic monoclinic monoclinic tetragonal rhombohedral orthorhombic monoclinic cubic monoclinic rhombohedral tetragonal hexagonal monoclinic cubic monoclinic cubic tetragonal rhombohedral tetragonal rhombohedral monoclinic cubic hexagonal rhombohedral tetragonal hexagonal monoclinic triclinic cubic cubic cubic orthorhombic hexagonal rhombohedral hexagonal monoclinic tetragonal cubic monoclinic rhombohedral monoclinic monoclinic tetragonal hexagonal tetragonal tetragonal hexagonal tetragonal rhombohedral
Ore potential of acidic rocks of the Achean Kolmozero-Voronya zone, NE Baltic Shield
Published in Adam Piestrzyński, Mineral Deposits at the Beginning of the 21st Century, 2001
Pollucite is the main Cs mineral. Cs admixture was found in beryl, muscovite, íepidolite, microcline. There were found many Ta-Nb minerals, and the tantalite, manganotantalite, columbite, stibiotantalite, simpsonite, tapiolite, microcline are the main phases. Be forms two minerals – beryl and bavenite. The first one is common enough in all types of pegmatite, bavenite is very rare.
Evaluation of mining and mineral processing methods’ impact on tantalite concentrate in Kenticha open pit mine, southern Ethiopia
Published in Applied Earth Science, 2020
Weldegebrial Haile, Bheemalingeswara Konka, Zerihun Desta
Tantalite deposit at Kenticha was discovered in the 1980s during Ethiopia-Soviet joint exploration programme. The host granitic pegmatite, 2 km long and 400–700 m wide, has intruded N–S trending serpentinite and talc-chlorite schist. Kenticha granite pegmatite field comprised of quartz, spodumene pegmatite, muscovite pegmatite, blocky microcline and muscovite-albite granite, biotite granite, two-mica granite and alaskitic granite (Tadesse et al. 2003; Mohammedyasin 2017). The mineralization is complex type and the commercial concentrations of Ta, Nb, Hf, Zr, REE, U and Th are related to Be, Li, Cs, Rb- bearing zones of the pegmatite (Tadesse 2001). The pegmatite is internally zoned and is subdivided into lower quartz-muscovite-albite granite, intermediate muscovite-quartz-albite-microcline pegmatite, and upper spodumene-quartz-albite pegmatite, based on their mineral assemblage (Küster et al. 2009; Kim et al. 2013). Kenticha deposit is Mn-rich columbite-tantalite type and similar to the deposits of Alto Ligonha Province (Mozambique), the ANS (Egypt) and Tantalite Valley pegmatites (southern Namibia). Kenticha pegmatite also hosts a continuous suite of columbite group minerals from Fe-rich to Mn-rich columbite and Mn-rich tantalite, with rare ixiolite, tapiolite, Ta-bearing rutile and cassiterite (Melcher et al. 2017). Kenticha pegmatite is LCT-type, exhibits U-Pb ages of 530±4 Ma and characterized by the presence of muscovite, garnet, tourmaline, tantalite and aluminosilicates (Zerihun et al. 1995; Tadesse and Zerihun 1996; Černý and Ercit 2005; Küster et al. 2009; Mackay and Simandl 2014).
Theoretical investigation on MgV2O6: ab-initio study
Published in Philosophical Magazine, 2018
Md. Atikur Rahman, Md. Zahidur Rahaman, Md. Shahjahan Ali, Md. Abdur Razzaque Sarker
The family of vanadium oxide materials has attracted a huge attention in the research community recently due to their interesting ionic, electronic and physical characteristics. These compounds have many potential applications. These compounds can be used as cathode which is used in battery. These compounds are also suitable for electrochromic devices [1–5]. In the family of vanadium oxide, the Co-based vanadium oxide compounds are the subject of great interest in condensed matter physics and material science due to their many attractive characteristics including strong anisotropic character [6–9], magnetic field induced transition [6,10], quantum criticality nature [11–13], etc. Due to these remarkable characteristics not only Cobalt based but also Ni, Mg, Zn, Fe, W and Te-based vanadium oxides are synthesised and characterised in different time. Though a considerable amount of progress has been done to study the different physical and chemical nature of these compounds, however there is still lack of knowledge about the complete behaviour of these oxides. The general structure of vanadium oxide family is AV2O6 (where, A = Co, Mg, Ni, Zn, Fe, W and Te). It possesses the FeTa2O6 type (mineral tapiolite) crystal structure. In 1997 N. Kumada et al. first reported the trirutile type bismuth oxide [14].