| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,770,744,399 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
magnesite |
Also found in: Dictionary/thesaurus, Wikipedia | 0.01 sec. |
|
magnesite (măg`nəsīt), mineral, magnesium carbonate, MgCO3, white, yellow, or gray in color. It originates through the alteration of olivine or of serpentine by waters carrying carbon dioxide; through the replacement of calcium by magnesium in calcareous rocks, sometimes limestone but more often dolomite; and through precipitation from waters rich in magnesium that have undergone reaction with sodium carbonate. Caustic magnesite is not thoroughly calcined, 3% to 4% of carbon dioxide being left; mixed with magnesium chloride it makes oxychloride cement, which is extensively used for floorings and as a stucco. Dead-burned magnesite is calcined in kilns until it contains less than 1% of carbon dioxide; it is made into an excellent firebrick firebrick, brick that can withstand high temperatures, used to line flues, stacks, furnaces, and fireplaces. In general, such bricks have high melting points that range from about 2,800°F; (1.540°C;) for fireclay to 4,000°F; (2,200°C;) for silicon carbide. ..... Click the link for more information. . Magnesite is also used in the manufacture of Epsom salts, face powder, boiler wrappings, and disinfectants. magnesite [′mag·nə‚sīt] (mineralogy) MgCO3The mineral form of magnesium carbonate, usually massive and white, with hexagonal symmetry; specific gravity is 3, and hardness is 4 on Mohs scale. Also known as giobertite. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | ||
|---|---|---|---|
| said: "The acquisition of ASMAS, with its own kilns and sources of magnesite, represents an opportunity for vertical integration, which will enhance Minteq's ability to offer its state-of-the-art refractory technology to steel industry customers in the Middle East and Eastern Europe through an attractive delivered cost position. Magnesite has a wide variety of industrial applications (Simandl, 2002) and the same applies for silica. This report analyzes the worldwide markets for Magnesium, Magnesite and Dolomite in Metric Tons. |
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|