Coltan

Results: 216



#Item
1612012 Minerals Yearbook NIOBIUM and tantalum [advance Release] U.S. Department of the Interior U.S. Geological Survey

2012 Minerals Yearbook NIOBIUM and tantalum [advance Release] U.S. Department of the Interior U.S. Geological Survey

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Source URL: minerals.usgs.gov

Language: English - Date: 2014-06-02 08:24:02
162COLUMBIUM (NIOBIUM) AND TANTALUM By Larry D. Cunningham Domestic survey data and tables were prepared by Robin C. Kaiser, statistical assistant, and the world production table was prepared by Regina R. Coleman, internati

COLUMBIUM (NIOBIUM) AND TANTALUM By Larry D. Cunningham Domestic survey data and tables were prepared by Robin C. Kaiser, statistical assistant, and the world production table was prepared by Regina R. Coleman, internati

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Source URL: minerals.usgs.gov

Language: English - Date: 2002-10-10 09:17:36
163162 TANTALUM (Data in metric tons of tantalum content unless otherwise noted) Domestic Production and Use: No significant U.S. tantalum mine production has been reported since[removed]Domestic tantalum resources are of lo

162 TANTALUM (Data in metric tons of tantalum content unless otherwise noted) Domestic Production and Use: No significant U.S. tantalum mine production has been reported since[removed]Domestic tantalum resources are of lo

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Source URL: minerals.usgs.gov

Language: English - Date: 2011-01-24 14:45:03
164172 TANTALUM (Data in metric tons of tantalum content, unless otherwise noted) Domestic Production and Use: There has been no significant domestic tantalum-mining industry since[removed]Domestic tantalum resources are of

172 TANTALUM (Data in metric tons of tantalum content, unless otherwise noted) Domestic Production and Use: There has been no significant domestic tantalum-mining industry since[removed]Domestic tantalum resources are of

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Source URL: minerals.usgs.gov

Language: English - Date: 1999-02-05 13:38:46
165COLUMBIUM (NIOBIUM) AND TANTALUM By Larry D. Cunningham Columbium (niobium - Nb) is vital as an alloying element in steels and in superalloys for aircraft turbine engines and is in greatest demand in industrialized count

COLUMBIUM (NIOBIUM) AND TANTALUM By Larry D. Cunningham Columbium (niobium - Nb) is vital as an alloying element in steels and in superalloys for aircraft turbine engines and is in greatest demand in industrialized count

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Source URL: minerals.usgs.gov

Language: English - Date: 1999-05-06 06:56:16
16652 COLUMBIUM (NIOBIUM) (Data in metric tons of columbium content unless otherwise noted) Domestic Production and Use: There has been no significant domestic columbium mining since[removed]Domestic columbium resources are

52 COLUMBIUM (NIOBIUM) (Data in metric tons of columbium content unless otherwise noted) Domestic Production and Use: There has been no significant domestic columbium mining since[removed]Domestic columbium resources are

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Source URL: minerals.usgs.gov

Language: English - Date: 2005-01-12 10:17:57
167160 TANTALUM (Data in metric tons of tantalum content unless otherwise noted) Domestic Production and Use: No significant U.S. tantalum mine production has been reported since[removed]Domestic tantalum resources are of lo

160 TANTALUM (Data in metric tons of tantalum content unless otherwise noted) Domestic Production and Use: No significant U.S. tantalum mine production has been reported since[removed]Domestic tantalum resources are of lo

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Source URL: minerals.usgs.gov

Language: English - Date: 2014-03-07 17:14:18
168162 TANTALUM (Data in metric tons of tantalum content unless otherwise noted) Domestic Production and Use: No significant U.S. tantalum mine production has been reported since[removed]Domestic tantalum resources are of lo

162 TANTALUM (Data in metric tons of tantalum content unless otherwise noted) Domestic Production and Use: No significant U.S. tantalum mine production has been reported since[removed]Domestic tantalum resources are of lo

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Source URL: minerals.usgs.gov

Language: English - Date: 2013-01-29 12:07:48
169168 TANTALUM (Data in metric tons of tantalum content, unless otherwise noted) Domestic Production and Use: There has been no significant domestic tantalum-mining industry since[removed]Domestic tantalum resources are of

168 TANTALUM (Data in metric tons of tantalum content, unless otherwise noted) Domestic Production and Use: There has been no significant domestic tantalum-mining industry since[removed]Domestic tantalum resources are of

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Source URL: minerals.usgs.gov

Language: English - Date: 2000-03-07 08:36:12
170168 TANTALUM (Data in metric tons of tantalum content, unless otherwise noted) Domestic Production and Use: There has been no significant domestic tantalum mining since[removed]Domestic tantalum resources are of low grade

168 TANTALUM (Data in metric tons of tantalum content, unless otherwise noted) Domestic Production and Use: There has been no significant domestic tantalum mining since[removed]Domestic tantalum resources are of low grade

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Source URL: minerals.usgs.gov

Language: English - Date: 2003-02-11 14:30:54