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Columbite, also called niobite, niobite-tantalite and columbate, with a general chemical formula of (FeII,MnII)Nb2O6, is a black mineral group that is...

(synonym of diopside) Manganocolumbite (synonym of columbite-(Mn)) Manganotantalite (synonym of tantalite-(Mn)) Mariposite (variety of phengite/muscovite) Meerschaum...

Mn)Ta2O6] is the primary source of the chemical element tantalum, a corrosion (heat and acid) resistant metal. It is chemically similar to columbite,...

Franklinite (Zn,Fe,Mn)(Fe,Mn)2O4 Chromite FeCr2O4 Chrysoberyl BeAl2O4 Columbite (Fe,Mn)(Nb,Ta)2O6 Hydroxide subgroup: Brucite Mg(OH)2 Manganite MnO(OH) Romanèchite...

to columbite and tantalite. Those minerals have the same chemical composition, but different crystal symmetry orthorhombic for tantalite or columbite and...

that of columbite Coltan, a mixture of columbite and tantalite series Galaxite, MnIIAl2O4, a spinel mineral Todorokite, (Na,Ca,K,Ba,Sr) 1-x(Mn,Mg,Al) 6O...

[893] [894] [895] Columbite-(Mg) (columbite: IMA1967 s.p., 1963) 4.DB.35 [896] [897] [898] Columbite-(Mn) (columbite: IMA2007 s.p., 1892) 4.DB.35 [899]...

native arsenic, beusite, native bismuth, cheralite, chrysoberyl, columbite-(Fe), columbite-(Mn), ernienickelite, native gold, gorceixite, hollandite, microcline...

Cuyaite Cuy Caminite Cmi Chabazite-Ca Cbz-Ca Chrombismite Cbis Columbite-(Mn) Clb-Mn Cuzticite Cuz Campigliaite Cpg Chabazite-K Cbz-K Chromceladonite...

Wise, M.A.; Černý, P.; Falster, A.U. (1998). "Scandium substitution in columbite-group minerals and ixiolite" (PDF). Canadian Mineralogist. 36: 673–680...

Tantalite (Fe, Mn)Ta2O6 is the most important mineral for tantalum extraction. Tantalite has the same mineral structure as columbite (Fe, Mn) (Ta, Nb)2O6;...

nomenclature, is a group of elements in the periodic table. It contains manganese (Mn), technetium (Tc), rhenium (Re) and bohrium (Bh). This group lies in the d-block...

contain tantalum. Examples include columbite ((Fe,Mn)Nb2O6) and columbite–tantalite (or coltan, (Fe,Mn)(Ta,Nb)2O6). Columbite–tantalite minerals (the most common...

fluoride – IrF5 Iridium hexafluoride – IrF6 Iridium tetrafluoride – IrF4 Columbite – Fe2+Nb2O6 Iron(II) chloride – FeCl2 Iron(II) oxalate – FeC2O4 Iron(II)...

GB.15 [765] [766] [767] ([Ag9CuS4][(Ag,Cu)6(Sb,As)2S7]) Polycrase-(Y) (columbite: IMA1987 s.p., 1844) 4.DG.05 [768] [769] [770] (IUPAC: yttrium di(titanium...

value are classified depending on the dominant element such as Ca, Fe, Mg, or Mn among many others. They are one of the most diverse and abundant mineral deposits...

minerals include quartz, feldspar, spodumene, amblygonite, tourmaline, columbite, cassiterite, topaz and beryl. Notable occurrences include Brazil; Ural...

general practice then). For some elements (e.g. Be, B, Na, Mg, Al, Si, K, Ca, Mn, Co, Ni, Zr, Mo), this presents further difficulties as their compounds were...

Tantalite-(Mn) (IMA2007 s.p., 1887) 4.DB.35 [78] [79] [80] Tantalowodginite (IMA2017-095) 4.0 [81] [no] [no] Tanteuxenite-(Y) (columbite: IMA1987 s.p...

tantalum. These two elements are generally found together in ores (e.g. columbite) and their separation presents a challenge since they form very similar...