- tin ores
- Смотри оловянные руды.
Энциклопедический словарь по металлургии. — М.: Интермет Инжиниринг. Главный редактор Н.П. Лякишев. 2000.
tin ores
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Tin — is a chemical element with the symbol Sn ( la. stannum) and atomic number 50. This silvery, malleable poor metal that is not easily oxidized in air and resists corrosion, is found in many alloys and is used to coat other metals to prevent… … Wikipedia
tin processing — Introduction preparation of the ore for use in various products. Tin (Sn) is a relatively soft and ductile metal with a silvery white colour. It has a density of 7.29 grams per cubic centimetre, a low melting point of 231.88° C… … Universalium
tin — n. & v. n. 1 Chem. a silvery white malleable metallic element resisting corrosion, occurring naturally in cassiterite and other ores, and used esp. in alloys and for plating thin iron or steel sheets to form tin plate. Usage: Symb.: Sn. 2 a a… … Useful english dictionary
оловянные руды — [tin ores] руды, содержащие Sn в таких соединениях и концентрациях, при которых их промышленное использование технически возможно и экономически целесообразно. Главные промышленные минералы олова касситерит SnO2 и станнин Cu2FeSnS4. В качестве… … Энциклопедический словарь по металлургии
Mining in Bolivia — Mining in Potosí Mining in Bolivia has been a dominant feature of the Bolivian economy as well as Bolivian politics since 1557. Colonial era silver mining in Bolivia, particularly in Potosí, played a critical role in the Spanish Empire and the… … Wikipedia
Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… … Universalium
Timeline of Ancient history — is the historical events in time of the documented ancient past from the beginning of recorded history until the Early Middle Ages.TimelinePrehistory*Early human migrations from the cradle of humanity and beginning cradle of civilization **Lower… … Wikipedia
Timeline of chemical elements discoveries — The discovery of the elements known to exist today is presented here in chronological order. The elements are listed generally in the order in which each was first defined as the pure element,[clarification needed] as the exact date of discovery… … Wikipedia
Prehistory — For a timeline of events in the early history of the universe and prehistoric Earth, see Timeline of prehistory. Stonehenge, England, erected by Neolithic peoples ca. 4500 4000 years ago … Wikipedia
Bronze — This article is about the metal alloy. For other uses, see Bronze (disambiguation). Bronze Chola statue of Nataraja from India at the Metropolitan Museum of Art, New York City Bronze is a metal alloy consisting primarily of copper, usually with… … Wikipedia
