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Hafnium
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81	192 ZIRCONIUM AND HAFNIUM (Data in metric tons, unless otherwise noted) Domestic Production and Use: Zircon sand was produced at two mines in Florida. Zirconium and hafnium metal were produced from zircon sand by two do Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 1999-05-12 13:23:28 Transition metals Hafnium Zirconium Zircon Niobium Neutron capture Control rod Baddeleyite Group 4 element Matter Chemistry Chemical elements
82	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 Glenn J. Wallace, international data coord Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2002-08-28 12:31:00 Chemical elements Transition metals Oxide minerals Gemstones Zircon Hafnium Iluka Resources Ilmenite Heavy mineral sands ore deposits Matter Chemistry Economic geology
83 $Transition metals / Refractory metals / Tantalum / Capacitors / Niobium / Hafnium / Superalloy / Coltan / Chemistry / Matter / Chemical elements$	166 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: 2004-01-13 13:42:08 Transition metals Refractory metals Tantalum Capacitors Niobium Hafnium Superalloy Coltan Chemistry Matter Chemical elements
84	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: 2001-08-30 10:02:50 Economic geology Gemstones Chemical elements Transition metals Zircon Hafnium Iluka Resources Heavy mineral sands ore deposits Ilmenite Chemistry Matter Oxide minerals
85	192 ZIRCONIUM AND HAFNIUM (Data in metric tons unless otherwise noted) Domestic Production and Use: The zirconium-silicate mineral zircon is produced as a coproduct from the mining and processing of heavy minerals. Two Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2006-01-19 09:46:57 Transition metals Zirconium Hafnium Zircon Niobium Baddeleyite Group 4 element Matter Chemistry Chemical elements
86	190 ZIRCONIUM AND HAFNIUM (Data in metric tons unless otherwise noted) Domestic Production and Use: The zirconium-silicate mineral zircon is produced as a coproduct from the mining and processing of heavy minerals. Typi Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2011-01-24 15:03:45 Transition metals Zirconium Hafnium Zircon Baddeleyite Niobium Ore Group 4 element Chemistry Matter Chemical elements
87 $Transition metals / Refractory metals / Tantalum / Niobium / Scrap / Hafnium / Ore / Coltan / Matter / Chemistry / Chemical elements$	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: 2012-01-24 14:47:19 Transition metals Refractory metals Tantalum Niobium Scrap Hafnium Ore Coltan Matter Chemistry Chemical elements
88	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 Glenn J. Wallace, international data coord Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2003-08-28 08:39:30 Gemstones Chemical elements Transition metals Oxide minerals Zircon Iluka Resources Heavy mineral sands ore deposits Hafnium Ilmenite Matter Chemistry Economic geology
89	190 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. A new mine was expected to begin operati Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2004-01-13 14:05:44 Transition metals Zirconium Hafnium Zircon Niobium Baddeleyite Heavy mineral sands ore deposits Group 4 element Matter Chemistry Chemical elements
90	190 ZIRCONIUM AND HAFNIUM (Data in metric tons unless otherwise noted) Domestic Production and Use: The zirconium-silicate mineral zircon is produced as a coproduct from the mining and processing of heavy minerals. Typi Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2013-01-29 12:27:19 Transition metals Zirconium Hafnium Zircon Niobium Baddeleyite Group 4 element Matter Chemistry Chemical elements

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