Columbite - Wikipedia
Columbite, also called niobite, niobite-tantalite and columbate [(Fe, Mn)Nb 2 O 6], is a black mineral group that is an ore of niobium.
Coltan - Wikipedia
Coltan (short for columbite–tantalites and known industrially as tantalite) is a dull black metallic ore, from which the elements niobium and tantalum are extracted.
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Columbite-tantalite — coltan for short — is a dull metallic ore found in major ... China and Congo's coltan connection - Project 2049 Institute.
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A generic name for minerals of the Columbite/Tantalite families which are difficult to distinguish without sophisticated tests.
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165 Read at the Annual Conference of the Ussher Society, January 1998 COLUMBITE-TANTALITE, RUTILE AND OTHER ACCESSORY MINERALS FROM THE ST AUSTELL TOPAZ GRANITE, CORNWALL
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In recent years the 'obscure mineral' coltan—geological name Columbite Tantalite—has become widely known and politicised for being closely connected with the violence of armed groups in the Eastern Democratic Republic of Congo (DRC). Similar to ...
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Coltan is short for Columbite-tantalite – a black tar-like mineral found in major quantities in the Congo. The Congo possesses 80 percent of the world's coltan. When coltan is refined it becomes a heat resistant powder that can hold a high electric charge.
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Download Citation on ResearchGate | The association of columbite, tantalite and tapiolite in the Suzhou granite, China | We present the results of an investigation of the chemical composition of Nb-Ta oxide minerals from the Suzhou granitic complex, China.
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Columbite, Tantalite, Coltan - Siberian Minerals is a leading importer of Columbite from Russia.
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Columbite tantalite crusher machine - YouTube Feb 13, 2016 More Details: Columbite-Tantalite Ore Clumbite is a kind of niobium and tantalum in metal mine. ... Columbite tantalite crusher machine - YouTube. China mining .south africa crushing machine Tantalite Crusher The Columbite Tantalite specimens are no longer on sale ... Get …
Tantalite: Tantalite mineral information and data.
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JFG Global Limited is a leading supplier of conflict-free coltan (columbite-tantalite) to the international community. Our conflict-free coltan is mined in West Africa, and sold globally to clients in countries like China and the USA.
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