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Feldspar
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151	Feldspar and nepheline syenite in 2001 Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2002-07-17 14:14:34 Igneous rocks Tectosilicates Economic geology Nepheline syenite Feldspar Industrial mineral Unimin Syenite Aplite Petrology Igneous petrology Crystallography
152	FELDSPAR AND NEPHELINE SYENITE By Michael J. Potter Domestic survey data and tables were prepared by Hoa P. Phamdang, statistical assistant, and the world production table was prepared by Glenn J. Wallace, international Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2006-08-15 08:59:01 Tectosilicates Igneous rocks Nepheline syenite Feldspar Industrial mineral Unimin Syenite Aplite China stone Petrology Crystallography Igneous petrology
153	2011 Minerals Yearbook FELDSPAR AND NEPHELINE SYENITE [ADVANCE RELEASE] U.S. Department of the Interior U.S. Geological Survey Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2013-05-24 11:12:23 Igneous rocks Tectosilicates Nepheline syenite Unimin Feldspar Industrial mineral Leucite Aplite China stone Petrology Crystallography Igneous petrology
154	FELDSPAR AND NEPHELINE SYENITE By Michael J. Potter Domestic survey data and tables were prepared by Hoa P. Phamdang, statistical assistant, and the world production table was prepared by Glenn J. Wallace, international Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2004-09-14 10:34:25 Tectosilicates Igneous rocks Nepheline syenite Industrial mineral Feldspar Unimin Syenite Aplite China stone Petrology Igneous petrology Crystallography
155	62 FELDSPAR (Data in thousand metric tons, unless otherwise noted) Domestic Production and Use: U.S. feldspar production in 1999 had an estimated value of $45 million. The three largest producers accounted for about two Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2000-03-06 10:40:04 Feldspar Tectosilicates Nepheline syenite Petrology Crystallography Igneous petrology
156	58 FELDSPAR (Data in thousand metric tons unless otherwise noted) Domestic Production and Use: U.S. feldspar production in 2006 had an estimated value of about $43 million. The three leading producers accounted for abou Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2007-01-17 10:58:51 Feldspar Tectosilicates Igneous petrology Nepheline syenite Mica Aluminium Chemistry Crystallography Petrology
157	FELDSPAR AND NEPHELINE SYENITE By Michael J. Potter Domestic survey data and tables were prepared by Christopher H. Lindsay, statistical assistant, and the world production table was prepared by Ronald L. Hatch, lead int Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2000-08-16 12:47:20 Igneous rocks Tectosilicates Nepheline syenite Feldspar Industrial mineral Unimin Aplite Syenite China stone Petrology Igneous petrology Crystallography
158	2005 Minerals Yearbook Feldspar and Nepheline Syenite U.S. Department of the Interior U.S. Geological Survey Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2006-08-15 07:54:48 Igneous rocks Economic geology Nepheline syenite Tectosilicates Unimin Industrial mineral Feldspar Leucite Syenite Petrology Igneous petrology Crystallography
159	2009 Minerals Yearbook FELDSPAR AND NEPHELINE SYENITE [ADVANCE RELEASE] U.S. Department of the Interior U.S. Geological Survey Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2011-06-30 14:41:50 Igneous rocks Economic geology Tectosilicates Nepheline syenite Unimin Feldspar Leucite Industrial mineral Syenite Petrology Igneous petrology Crystallography
160	FELDSPAR AND NEPHELINE SYENITE By Michael J. Potter Domestic survey data and tables were prepared by Linder Roberts, statistical assistant, and the world production table was prepared by Ronald L. Hatch, international da Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2000-10-17 07:48:18 Tectosilicates Nepheline syenite Industrial mineral Unimin Feldspar Syenite Aplite Ceramic Soda-lime glass Petrology Crystallography Igneous petrology

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