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  • Columbite - Wikipedia

    OverviewHistory and etymologySee alsoExternal links

    Columbite, also called niobite, niobite-tantalite and columbate [(Fe, Mn)Nb2O6], is a black mineral group that is an ore of niobium. It has a submetallic luster and a high density and is a niobate of iron and manganese. This mineral group was first found in Haddam, Connecticut, in the United States. It forms a series with the tantalum-dominant analogue ferrotantaliteand one with the manganese-dominant analogue manganocolumbite. The iron-rich member of the columbite group is ferrocolumbite. Some tin and tungs

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  • Columbite - definition of columbite by The Free Dictionary

    columbite (kə-lŭm′bīt′) n. A black, red-brown, or colorless mineral, essentially (Fe, Mn)(Nb, Ta)2O6, the principal ore of niobium. [columb(ium) + -ite.] columbite (kəˈlʌmbaɪt) n (Minerals) a black mineral consisting of a niobium oxide of iron and manganese in orthorhombic crystalline form: occurs in coarse granite, often with tantalite ...

  • Columbite Definition of Columbite at Dictionary

    Columbite definition, a black, crystalline mineral, iron niobate, (Fe, Mn)Nb2O6, the principal ore of niobium, an end member of a series of solid solutions in which manganese and tantalum combine to form tantalite. See more.

  • Columbite Article about Columbite by The Free Dictionary

    (from Latin columbium, an alternate name for niobium), a mineral of the columbite-tantalite group, combining complex oxides of the AB 2 O 6 type and forming the isomorphic series FeNb 2 O 6 —MnNb 2 O 6 (columbite proper) and FeTa 2 O 6 —MnTa 2 O 6 (tantalite). The columbites also include members of isomorphic series in which niobium (in weight percent) predominates over tantalum.

  • Tantalit-(Mn) – Wikipedia

    Tantalit-(Mn) ist ein seltenes Mineral aus der Mineralklasse der Oxide und Hydroxide.Es kristallisiert im rhombischen Kristallsystem mit der Zusammensetzung Mn 2+ Ta 2 O 6, ist also ein Mangan-Tantal-Oxid.. Tantalit-(Mn) bildet kurzprismatische, isometrische oder tafelige Kristalle, die zu parallel oder subparallel angeordneten Aggregaten verwachsen sind, findet sich daneben auch in Form von ...

  • System-Nr. nach Strunz und nach Dana: 4.DB.35
  • Coltan - Wikipedia

    Coltan (short for columbite–tantalites and known industrially as tantalite) is a dull black metallic ore from which are extracted the elements niobium and tantalum.The niobium-dominant mineral in coltan is columbite (after niobium's original American name columbium), and the tantalum-dominant mineral is the tantalite.. Tantalum from coltan is used to manufacture tantalum capacitors which are ...

  • Columbite Wunderama

    Un moderno telefono cellulare contiene una trentina di elementi chimici diversi tra i quali il tantalio, un elemento molto raro in natura e il cui minerale di estrazione primario è detto coltan. Il termine è un’abbreviazione di columbite-tantalite, una miscela di due minerali della classe degli ossidi. Il tantalio è utilizzato nell’industria elettronica per la fabbricazione dei ...

  • Tantalite Meaning Use: Highly Protective, Boosts ...

    About This Mineral... Where Is It from?Meaning of TantaliteWhy Would You Use It?How to Use It?Who Should Use It? Healing PropertiesHow Will It Help You?Combining It with Other StonesMore Pictures of Tantalite...This stone is an ore of tantalum, which is mined for its use in mobile phones and other electronic equipment. It is chemically similar to Columbite, so you may also see it called columbite-tantalite in some places. It is also known by two other names depending on the exact makeup of the stones.The more common one is the manganese rich type which is called manganotantalite or less commonly, the iron rich variety called ferrotantalite.It is f在healing-crystals-for-you上查看更多信息
  • Coltan Definition of Coltan at Dictionary

    Coltan definition at Dictionary, a free online dictionary with pronunciation, synonyms and translation. Look it up now!

  • Columbite mineral Britannica

    Columbite, hard, black (often iridescent), heavy oxide mineral of iron, manganese, and niobium, (Fe, Mn)Nb 2 O 6. Tantalum atoms replace niobium atoms in the crystal structure to form the mineral tantalite, which is similar but much more dense.These minerals are the most abundant and widespread of the naturally occurring niobates and tantalates and are important ores, their elements niobium ...

  • Columbite Tantalite Means - phumlani-lodge.co.za

    > Go to website. Columbite Tantalite Buy Coltan on the Market Call 15143582024 or write to [email protected] for information on Pricing. Get Price; tantalite and columbite Suppliers tantalite and columbite Suppliers Manufacturers , include SMI International Inc , Prosper mineracao , Voldeterre International Limited , BEGTOS AND ASSOCIATES ...

  • Columbite dictionary definition columbite defined

    columbite definition: a black, orthorhombic mineral, (Fe,Mn)(Nb,Ta)O, that is an ore of niobium and tantalumOrigin of columbite columb(ium) + -ite...

  • Columbite-tantalite - Wikipedia

    La columbite-tantalite, (detta anche coltan) è una miscela complessa di columbite (Fe, Mn)Nb 2 O 6 e tantalite (Fe, Mn)Ta 2 O 6, due minerali della classe degli ossidi che si trovano molto raramente come termini puri. Il termine "coltan" è usato colloquialmente in Africa per riferirsi ad una columbite-tantalite a relativamente alto tenore di tantalio. La miscela estratta in diversi paesi ...

  • Columbite-tantalite dictionary definition columbite ...

    columbite-tantalite definition: nounA dull black aggregate of the minerals columbite and tantalite, mined primarily in central Africa as an ore for niobium and tantalum. It is also used to make nuclear reactor parts and electronic components in devices such as ce...

  • Columbite — Wikipédia

    La columbite ou niobite, niobite-tantalite ou encore columbate vient en fait de la subdivision de la colombite qui regroupait en réalité deux minéraux distincts de même type, une forme fer et une forme manganèse. Ce minéral noirâtre est en association avec le niobium et le tantale. Découverte. Découverte pour la première fois à Haddam, dans le comté de Middlesex, au nord-est des ...

  • Tantalite - Wikipedia

    The mineral group tantalite [(Fe, Mn)Ta 2 O 6] is the primary source of the chemical element tantalum.It is chemically similar to columbite, and the two are often grouped together as a semi-singular mineral called coltan or "columbite-tantalite" in many mineral guides. However, tantalite has a much greater specific gravity than columbite (8.0+ compared to columbite's 5.2).

  • COLUMBITE : Définition de COLUMBITE

    MINÉR.,,Mélange de tantalates et de colombates de fer et de manganèse, utilisé comme minerai du colombium (ou niobium`` (Lar. 20 e Suppl. 1929).Ce métal fut entrevu pour la première fois, en 1801, par Hatchett, qui lui avait donné le nom de colombium, parce qu'il l'avait observé dans la columbite ou tantalite de Massachusetts (A. Wurtz, Dict. de chim. pure et appliquée,t. 2, 1 er vol ...

  • Tantalite Meaning - YouTube

    25.04.2015  Video shows what tantalite means. A dark-brown mineral that is an ore of tantalum and niobium, of the chemical formula (Fe, Mn) Ta2O6.. Tantalite Meaning. How to pronounce, definition audio ...

  • 作者: ADictionary
  • Columbites Article about columbites by The Free

    (from Latin columbium, an alternate name for niobium), a mineral of the columbite-tantalite group, combining complex oxides of the AB 2 O 6 type and forming the isomorphic series FeNb 2 O 6 —MnNb 2 O 6 (columbite proper) and FeTa 2 O 6 —MnTa 2 O 6 (tantalite). The columbites also include members of isomorphic series in which niobium (in weight percent) predominates over tantalum.

  • columbite-tantalite - Deutsch-Übersetzung – Linguee

    Viele übersetzte Beispielsätze mit "columbite-tantalite" – Deutsch-Englisch Wörterbuch und Suchmaschine für Millionen von Deutsch-Übersetzungen.

  • Tantalite - definition of tantalite by The Free Dictionary

    Define tantalite. tantalite synonyms, tantalite pronunciation, tantalite translation, English dictionary definition of tantalite. n. A black to red-brown mineral, 2O6, distinguished from columbite by the predominance of tantalum over niobium and used as an ore of both elements.

  • What does columbite-tantalite mean? definition, meaning ...

    Dictionary entry overview: What does columbite-tantalite mean? • COLUMBITE-TANTALITE (noun) The noun COLUMBITE-TANTALITE has 1 sense:. 1. a valuable black mineral combining niobite and tantalite; used in cell phones and computer chips Familiarity information: COLUMBITE-TANTALITE used as a noun is very rare.

  • Tantalite mineral Britannica

    Tantalite, tantalum-rich variety of the mineral columbite (q.v.) with the chemical formula (Fe,Mn)(Ta,Nb)2O6. Tantalite is the principal ore of the metal

  • COLOMBITE-TANTALITE - Encyclopædia Universalis

    La tantalite, (Fe,Mn)Ta2O6, et la colombite (on écrit aussi columbite), ou niobite (Fe,Mn)Nb2O6 constituent une série de mélanges minéraux isomorphes : les colombo-tantalites. Les teneurs en colombo-tantalates, ou niobo-tantalates, et en ferromagnésiens varient beaucoup, et même à l'intérieur d'un gîte de petite on. À cette série on trouve quelquefois associés l'

  • Mineral profile Niobium-Tantalum

    The columbite-tantalite mineral group (Figure 1) is the most common group of tantalum- and niobium-bearing minerals. Wodginite is also an important source of tantalum. The pyrochlore group (Figure 2) is of great economic importance, particularly for niobium. This group has a wide compositional range, including some species rich in both niobium and tantalum. Pyrochlore is typically found as a ...

  • columbite tantalite acronym - chauffage-nanni.be

    Zambia Iron ore beneficiation plant for an acronym for columbite tantalite, is a metallic ore composed of niobium and Read More; Tantalite Beneficiation primaryteachers tantalite ore beneficiation plant cost estimates Oct 25th feasibility study results tabba tabba tantalum Beneficiation Mining Southern; Columbite Tantalite 2014; Read More . Get Price; Columbite-tantalite synonyms, columbite ...

  • Columbite Definition of Columbite by Lexico

    ‘The abundance of these elements in the parental magma leads to the formation of less-common minerals such as apatite, beryl, topaz, amblygonite, lepidolite, spodumene tantalite, columbite, monazite, zircon, and uraninite.’ ‘It occurs most commonly in the minerals columbite, tantalite

  • columbite-tantalite中文_columbite-tantalite是什么意思


  • columbite tantalite acronym - opelteamklazienaveen.nl

    Columbite Tantalite: a film that fuses Congo's past and present . Dec 11, 2013 In full, coltan's name is columbite-tantalite, after Tantalus, the figure in that he is connected to a conflict in a remote part of the world would ... War and Conflict Minerals in the World's Deadliest Place . 'is an abbreviation of columbite-tantalite, a mixture of ...

  • Columbite Definition of Columbite by Oxford Dictionary ...

    ‘It occurs most commonly in the minerals columbite, tantalite, and microlite.’ ‘These minerals are columbite, microlite, futile, thorite, and zircon.’ ‘Beryl, columbite, and triphylite are common accessory minerals in the Estes pegmatite, especially in the coarse-grained layers.’

  • Columbite-tantalite (Ta) - National Museums Scotland

    From minerals to your mobile 1. Oil shale (H) 2. Spodumene (Li) 3. Beryl (Be) 4. Borax (Bo) 5. Diamond (C) ... Tantalum (Ta), found in the mineral columbite-tantalite, is used in the wires and connectors of mobile phones. This mineral is currently in storage at the National Museums Collection Centre. < Previous mineral Back to mobile Next mineral > Tags. Resource; Natural World; Rocks and ...

  • Definitions for columbite-tantalite

    Definition of columbite-tantalite in the Definitions.net dictionary. Meaning of columbite-tantalite. What does columbite-tantalite mean? Information and translations of columbite-tantalite in the most comprehensive dictionary definitions resource on the web.

  • Columbite: The mineral columbite-tantalite information

    Columbite forms a solid solution series with Tantalite known as the Columbite-Tantalite series. Columbite is the niobium-rich member, and Tantalite is the tantalum-rich member. Columbite is named after its niobium content, which was previous known as columbium prior to its renaming.

  • Columbite-tantalite (COLTAN) > ENGINEERING

    COLTAN (Columbite-Tantalite) is a dull metallic ore found in major quantities in the eastern areas of Congo. When refined, COLTAN becomes metallic Tantalum, a heat-resistant powder that can hold a high electrical charge. Columbite ((Fe, Mn, Mg)(Nb, Ta) 2 O 6: Iron Manganese Magnesium Niobium Tantalum Oxide) is the most abundant niobium mineral and is used in alloys for improved strength.

  • columbite mining process - cafeole-koeln.de

    columbite mining process_niobium processingHistory, Ores, Mining, Extraction Major minerals of niobium are pyrochlore [Na, Ca 2 Nb 2 O 6 F] and columbite [Fe, MnNb, Ta

  • What are conflict minerals?

    “Conflict minerals,” as defined by the US legislation, currently include the metals tantalum, tin, tungsten and gold, which are the derivatives of the minerals cassiterite, columbite-tantalite and wolframite, respectively. Downstream companies often refer to the derivatives of

  • Columbite-tantalite synonyms, columbite-tantalite

    Synonyms for columbite-tantalite in Free Thesaurus. Antonyms for columbite-tantalite. 1 synonym for columbite-tantalite: coltan. What are synonyms for columbite-tantalite?

  • Columbite: Mineral information, data and localities.

    Columbite was long used as a species name but is now split between the iron end-member columbite-(Fe) and the manganese end-member columbite-(Mn) and consequently is the name of an isomorphous series (see Columbite-(Fe)-Columbite-(Mn) Series). The name columbite usually refers to (the more common) columbite-(Fe), formerly known as ferrocolumbite.

  • Columbite Definition of Columbite by Merriam-Webster

    Columbite definition is - a black mineral consisting mostly of iron and niobium.

  • TANTALITE - (MN) - YouTube

    23.10.2017  MINERALS FOR COLLECTION! TANTALITE - (MN) Size: 2,5 x 1 x 0,7 cm Weight: 12,6 grams Borborema mineral province Alto do giz pegmatite Equador, RN, Brazil Follow us on Instagram: https://www ...

  • 作者: Firmino's Minerals
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