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Golds great virtues of malleability ductility reflectivity resistance to corrosion and unparalleled ability as a thermal and electrical conductor mean it is used in a wide variety of industrial applications consuming close to 300 tonnes annually Gold Au from Latin Aurum World Book Dictionary is the most non-reactive of all metals -- it is benign in all natural and industrial environments Gold never reacts with oxygen one of the most active elements which means it will not rust or tarnish Gold is among the most electrically conductive of all metals Since electricity is basically the flow of charged particles in a current metals that are conductive allow this current to flow unimpeded Gold is able to convey even a tiny electrical current in temperatures varying from -55 to 200 centigrade Gold Institute Gold is the most ductile of all metals allowing it to be drawn out into tiny wires or threads without breaking Consequently a single ounce of gold can be drawn into a wire five miles long Golds malleability is also unparalleled It can be shaped or extended into extraordinarily thin sheets For example one ounce of gold can be hammered into a 100 square foot sheet Gold is the most reflective and least absorptive material of infrared or heat energy High purity gold reflects up to 99 of infrared rays Gold is also an excellent conductor of thermal energy or heat Since many electronic processes create heat gold is necessary to transfer heat away from delicate instruments Gold alloy is the most tenacious and long-performing material available for protection of these temperatures Geologists use the latest technology such as satellite surveys and geochemistry to locate an ore deposit Computers are used to design the mine which requires precise and accurate measurement of the ore deposit Construction begins following the lengthy process of receiving permits As holes are drilled for blasting samples of ore are examined to determine grade and metallurgical characteristics
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