Tantalite: Mineral information, data and localities.

An obsolete group name for minerals with the general formula (Mn,Fe)(Ta,Nb) 2 O 6, equivalent to the Tantalite-(Fe)-Tantalite-(Mn) Series.Generally mangan-dominant members are more abundant in nature. Many specimens called tantalite actually belong to the columbite series or tapiolite series. Visit gemdat.org for gemological information about Tantalite.

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Tantalite traded on the international market typically contains a minimum of 30% Ta2O5. Lower grade material, minimum 20% Ta2O5, is also traded but at a discount. Tantalite is purchased and sold solely on it's Ta2O5 content. Nb2O5 content is not figured into the payable value for tantalite.

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Tantalite Ore Ta2O5 18-20 % Genesis International Inc sell Tantalite ore Ta2O5 13%> Nb2O5 20%> T+U 0.3~1% TANTALIO BOLIVIA sell TANTALUM ORE Ta2O5 ; 5%. byproduct of tin smelting Hasil Impresif Sdn Bhd sell Tantalum oxide

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UK-based Roskill believes higher demand for computers, mobile phones and other consumer electronics will drive tantalum prices up long term. In a new report, UK research firm Roskill predicts that ...

Tantalum - Wikipedia

Tantalum is a chemical element with the symbol Ta and atomic number 73. Previously known as tantalium, its name comes from Tantalus, a villain from Greek mythology. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant.

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Alibaba.com offers 31 buyers coltan products. About 9% of these are other ore, 3% are other metals & metal products. A wide variety of buyers coltan options are available to you, such as lump, mine. You can also choose from free samples. There are 18 buyers coltan suppliers, mainly located in Asia.

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Jan 20, 2011· Tantalum comes in basically three forms: tantalum ore and concentrate (where our sources tell us long-term pricing could easily exceed $120/lb with African spot prices at …

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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).

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Specifications Tantalite Coltan Ore Ta2O5 20% min DRC Origin 5.000 kgs per week WAREHOUSE TANTALITE COLTAN ORE Ta2O5 Ta2O5 20% min Packing : steel drums into pallet 5000 kgs x per week WAREHOUSE Basis delivery, REGULAR ALL THE BUYERS WELCOME TO...

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Columbite and Tantalite deposits are also known as Coltan (Col-Tan). Coltan is mainly refined for its key components Tantalum metal and Columbium. Tantalum is ductile, easily fabricated, highly resistant to corrosion by acids and a good conductor of heat and electricity with a high melting point.

BBC News | AFRICA | Congo's coltan rush

Aug 01, 2001· In the yard of the Shenimed sorting house, young men are busy sorting and cleaning colombo-tantalite ore, or coltan, as it is known in this part of the world. Regional analysts say the international demand for coltan is one of the driving forces behind the war in …

Mineral profile Niobium-Tantalum - British Geological Survey

UK Ce nt re fo r su st ai na bl e mi ne ra l de vel opme nt Niobium–tantalum Definitions, mineralogy and deposits Definitions and characteristics Niobium (Nb) and tantalum (Ta) are transition metals with very similar physical and chemical properties, and are thus commonly grouped together (Table 1). Niobium was

Tantalite | mineral | Britannica.com

…the rare and important mineral tantalite (the principal ore of tantalum), of which Mozambique has what may be the world's largest reserves. Gold, bauxite (the principal ore of aluminum), graphite, marble, bentonite, and limestone are mined and quarried, and sea salt is extracted in coastal areas. Other development efforts have…

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The owner and operator, the UK-based Kennedy Ventures, is now planning to up the ante and production with the installation of a new crusher. This should help the company compete on par with other miners of tantalite as it competes for new buyers for its products across the world.

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Coltan (short for Columbite-Tantalite and known industrially as Tantalite) is a dull black metallic ore from which the elements Niobium and Tantalum are extracted. The Niobium-dominant mineral in Coltan is Columbite (after Niobium's original...