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Hafnium
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#	Item
71 $Transition metals / Refractory metals / Tantalum / Niobium / Hafnium / Scrap / Ore / Coltan / Matter / Chemistry / Chemical elements$	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 Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2014-03-07 17:14:18 Transition metals Refractory metals Tantalum Niobium Hafnium Scrap Ore Coltan Matter Chemistry Chemical elements
72	2011 Minerals Yearbook ZIRCONIUM AND HAFNIUM [ADVANCE RELEASE] U.S. Department of the Interior U.S. Geological Survey Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2013-09-26 15:06:29 Chemical elements Transition metals Oxide minerals Nesosilicates Hafnium Zircon Heavy mineral sands ore deposits Iluka Resources Cubic zirconia Chemistry Matter Gemstones
73 $Transition metals / Refractory metals / Tantalum / Niobium / Scrap / Hafnium / Coltan / Matter / Chemistry / Chemical elements$	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 Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2013-01-29 12:07:48 Transition metals Refractory metals Tantalum Niobium Scrap Hafnium Coltan Matter Chemistry Chemical elements
74	ZIRCONIUM AND HAFNIUM By James B. Hedrick Domestic survey data and tables were prepared by Mahbood Mahdavi, statistical assistant, and the world production table was prepared by Linder Roberts, international data coordin Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2006-08-15 09:17:19 Chemical elements Transition metals Gemstones Oxide minerals Zircon Iluka Resources Heavy mineral sands ore deposits Hafnium Ilmenite Matter Chemistry Economic geology
75 $Chemistry / Refractory metals / Tantalum / Niobium / Scrap / Defense National Stockpile Center / Hafnium / Ore / Matter / Chemical elements / Transition metals$	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 Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2010-01-27 10:09:31 Chemistry Refractory metals Tantalum Niobium Scrap Defense National Stockpile Center Hafnium Ore Matter Chemical elements Transition metals
76	194 ZIRCONIUM AND HAFNIUM (Data in metric tons of zirconium oxide (ZrO2) equivalent, unless otherwise noted) Domestic Production and Use: Zircon sand was produced at two mines in Florida and one mine in Virginia. Zircon Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 1999-05-12 13:23:29 Transition metals Hafnium Zirconium Zircon Niobium Neutron capture Baddeleyite Control rod Group 4 element Matter Chemistry Chemical elements
77	ZIRCONIUM AND HAFNIUM By James B. Hedrick Domestic survey data and tables were prepared by Mahbood Mahdavi, statistical assistant, and the world production tables were prepared by Linder Roberts, international data coord Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2000-07-27 07:10:22 Transition metals Gemstones Economic geology Oxide minerals Zircon Hafnium Heavy mineral sands ore deposits Rare earth element Iluka Resources Chemistry Matter Chemical elements
78 $Transition metals / Refractory metals / Tantalum / Capacitors / Niobium / Hafnium / Superalloy / Defense National Stockpile Center / Coltan / Chemistry / Matter / Chemical elements$	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 Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2003-02-11 14:30:54 Transition metals Refractory metals Tantalum Capacitors Niobium Hafnium Superalloy Defense National Stockpile Center Coltan Chemistry Matter Chemical elements
79	188 ZIRCONIUM AND HAFNIUM (Data in metric tons, unless otherwise noted) Domestic Production and Use: Zircon sand was produced at two mines in Florida and at one mine in Virginia. Zirconium and hafnium metal were produce Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2001-02-01 13:55:28 Transition metals Zirconium Hafnium Zircon Niobium Baddeleyite Oxide Group 4 element Chemistry Matter Chemical elements
80	192 ZIRCONIUM AND HAFNIUM (Data in metric tons, unless otherwise noted) Domestic Production and Use: Zircon sand was produced at two mines in Florida and one mine in Virginia. Zirconium and hafnium metal were produced f Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2000-03-06 14:17:58 Transition metals Zirconium Hafnium Zircon Niobium Baddeleyite Oxide Group 4 element Chemistry Matter Chemical elements

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