In China, for example, tungsten, tantalum, tin and gold are mined and Goldfields in Nevada that had been neglected because the The net profits of these mines to their owners are said to be six thousand dollars a day; and mountains of “Affect” vs. “Effect”: Use The Correct Word Every Time“Epidemic” vs. “Pandemic” vs. “Endemic”: What Do These Terms Mean?All Of These Words Are Offensive (But Only Sometimes)Absentee Ballot vs. Mail-In Ballot: Is There A Difference?It’d be a real faux pas to miss this quiz on the words from August 3–9, 2020!to waver in mind or opinion; be indecisive or irresolute.Dictionary.com Unabridged Published by Houghton Mifflin Harcourt Publishing Company. Ore is a deposit in Earth’s crust of one or more valuable minerals.
Copyright © 2011.
The Kursk Magnetic Anomaly, located in southwestern Russia, has iron-rich quartzites.
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012The American Heritage® Science Dictionary
Ore deposits are classified based on how they form, whether as a result of an igneous, metamorphic, or sedimentary process, or a hydrothermal exposure process.
Forums pour discuter de ore, voir ses formes composées, des exemples et poser vos questions.
Copper was the first metal to be smelted; it was another 1,000 years before iron was reduced from its ores.… Sweden is another producer of iron ore, notably in the Kiruna region.
Copper, an excellent conductor of electricity, is used as …
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Ore est une commune française située dans le département de la Haute-Garonne, en région Occitanie. History at your fingertips Références [modifier le wikicode] Documentation for ISO 639 identifier: ore, SIL International, 2020; Français [modifier le wikicode] Étymologie [modifier le wikicode] Du latin hac hora Référence nécessaire Nom commun [modifier le wikicode]
High-quality ores (of 60 percent iron), however, have been exhausted or have become expensive to mine. All rights reserved.Ore deposits are generally mined, and the ore is processed to recover the material.The New Dictionary of Cultural Literacy, Third Edition
Smelting, as differentiated from melting, was the first metallurgical operation and is still the principal method of gaining metals from their ores.
The ore is always mixed with unwanted or valueless rocks and minerals that are collectively known as
Our editors will review what you’ve submitted and determine whether to revise the article.Although more than 2,800 mineral species have been identified, only about 100 are considered ore No ore deposit consists entirely of a single ore mineral. Published by Houghton Mifflin Harcourt Publishing Company. Ore, a natural aggregation of one or more minerals that can be mined, processed, and sold at a profit.
ore (Linguistique) Code ISO 639-3 de l’orejón. All rights reserved.a metal-bearing mineral or rock, or a native metal, that can be mined at a profit.a mineral or natural product serving as a source of some nonmetallic substance, as sulfur.a bronze coin of Norway, the 100th part of a krone.a zinc or bronze coin of Denmark, the 100th part of a krone.a bronze coin of Sweden, the 100th part of a krona.a fractional currency of the Faeroe Islands, the 100th part of a krona.any naturally occurring mineral or aggregate of minerals from which economically important constituents, esp metals, can be extracteda Scandinavian monetary unit worth one hundredth of a Swedish krona and (A naturally occurring mineral or rock from which a valuable or useful substance, especially a metal, can be extracted at a reasonable cost. See more.
Get kids back-to-school ready with Expedition: Learn! Ore definition is - a naturally occurring mineral containing a valuable constituent (such as metal) for which it is mined and worked. An older definition restricted usage of the word ore to metallic mineral deposits, but the term has expanded in some instances to include nonmetallics.
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company.
Ore definition, a metal-bearing mineral or rock, or a native metal, that can be mined at a profit.
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Professor of Mining, Colorado School of Mines, Golden. Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020Collins English Dictionary - Complete & Unabridged 2012 Digital Edition The most valuable ore deposits contain metals crucial to industry and trade, like copper, gold, and iron.. Copper ore is mined for a variety of industrial uses.
from a chemical compound called ore. Editor,
ore - traduction anglais-français.
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Although more than 2,800 mineral species Deposits in other European countries are small…
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