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Metallic elements
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#	Item
31	THORIUM By James B. Hedrick Thorium is a soft, very ductile, silver-gray, heavy, metallic element of the actinide series of elements. It is represented by the chemical symbol Th or the isotopic symbol Th232. Thorium meta Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 1997-07-03 14:23:28 Actinides Nuclear fuels Nuclear materials Thorium Monazite Gas mantle Radioactive waste Cerium Nuclear fuel cycle Chemistry Matter Chemical elements
32	GERMANIUM By Earle B. Amey Germanium is a grayish-white, metallic element with the properties of a semiconductor, i.e., electrical characteristics between those of a metal and an insulator. It is commercially available a Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 1997-06-18 15:05:44 Periodic table Optical materials Poor metals Post-transition metals Germanium Metalloids Optical fiber Gallium Dopant Chemistry Matter Chemical elements
33	SILICON By Larry D. Cunningham Silicon (Si) is a light chemical element having metallic and nonmetallic characteristics. In nature, silicon combines with oxygen and other elements to form silicates. Silicon in the form o Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 1996-12-17 14:50:26 Ferroalloy Ferrosilicon Elkem Deoxidizer Silane Aluminium alloy Pidgeon process Chemistry Metalloids Silicon
34 $MOLYBDENUM By John W. Blossom Molybdenum is a refractory metallic element used principally as an alloying agent in steels, cast irons, and superalloys to enhance hardenability, strength, toughness, and wear and corrosion$	MOLYBDENUM By John W. Blossom Molybdenum is a refractory metallic element used principally as an alloying agent in steels, cast irons, and superalloys to enhance hardenability, strength, toughness, and wear and corrosion Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 1997-02-07 08:33:50 Refractory metals Transition metals Molybdenum Ferromolybdenum Tungsten Molybdate Jinduicheng Molybdenum Climax mine Chemistry Matter Chemical elements
35	GERMANIUM By Errol D. Sehnke Germanium is a grayish-white, metallic element with the physical properties of a semiconductor, i.e.-electrical characteristics between those of a metal and an insulator. It is Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 1996-09-16 10:53:41 Chemical elements Germanium Metalloids Oxides Optical fiber Dopant Tin Scrap Light-emitting diode Chemistry Matter Optical materials
36	GERMANIUM By Robert D. Brown, Jr. Germanium is a grayish-white, metallic element with electrical characteristics between those of a metal and an insulator, making it a semiconductor. It is commercially available as a tet Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2000-01-31 09:58:05 Chemical elements Optical materials Poor metals Post-transition metals Semiconductor devices Germanium Gallium Optical fiber Solar cell Chemistry Matter Periodic table
37 $MOLYBDENUM By John W. Blossom Molybdenum is a refractory metallic element used principally as an alloying agent in steels, cast irons, and superalloys to enhance hardenability, strength, toughness, and wear and corrosion$	MOLYBDENUM By John W. Blossom Molybdenum is a refractory metallic element used principally as an alloying agent in steels, cast irons, and superalloys to enhance hardenability, strength, toughness, and wear and corrosion Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 1997-11-19 08:04:54 Refractory metals Transition metals Dietary minerals Molybdates Molybdenum Ferromolybdenum Tungsten Sodium molybdate Jinduicheng Molybdenum Chemistry Matter Chemical elements
38	SILICON By Thomas S. Jones Silicon (Si) is a light chemical element having metallic and nonmetallic characteristics. In nature, silicon combines with oxygen and other elements to form silicates. Silicon in the form of si Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 1997-09-17 08:17:30 Superhard materials Ferroalloys Ferrosilicon Iron Silicon Elkem Polycrystalline silicon Deoxidizer Silane Chemistry Matter Ceramic materials
39	SILICON By Thomas S. Jones Silicon (Si) is a light chemical element having metallic and nonmetallic characteristics. In nature, silicon combines with oxygen and other elements to form silicates. Silicon in the form of si Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 2000-02-04 07:26:05 Ferrosilicon Iron Silicon Elkem Deoxidizer Polycrystalline silicon Silanes Polysilicon hydride Pidgeon process Chemistry Matter Ferroalloys
40	SILICON By Larry D. Cunningham Silicon (Si) is a light chemical element with metallic and nonmetallic characteristics. In nature, silicon combines with oxygen and other elements to form silicates. Silicon in the form Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 1996-08-22 14:16:40 Reducing agents Ceramic materials Metalloids Silicon Ferrosilicon Ferroalloy Elkem Deoxidizer Silane Chemistry Matter Chemical elements