|
Search over 100 encyclopedias and dictionaries: |
Research categories | Follow us on Twitter |
Research categories
View all topics in the newsView all reference sources at Encyclopedia.com |
|||
magnesite
magnesite , mineral, magnesium carbonate, MgCO 3 , 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 . Magnesite is also used in the manufacture of Epsom salts, face powder, boiler wrappings, and disinfectants. |
|
|
Cite this article
"magnesite." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. "magnesite." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1E1-magnesit.html "magnesite." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-magnesit.html |
|
magnesite
magnesite Carbonate, MgCO3 and end-member of a solid solution series with siderite, FeCo3; sp. gr. 3.0; hardness 4; whitish; earthy lustre; compact or granular; occurs as an alteration product of serpentines, dolomites, or limestones and may form as a chemical precipitate. It is mined commercially and used in the production of magnesium compounds, refractory products, and special cements.
|
|
|
Cite this article
AILSA ALLABY and MICHAEL ALLABY. "magnesite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "magnesite." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O13-magnesite.html AILSA ALLABY and MICHAEL ALLABY. "magnesite." A Dictionary of Earth Sciences. 1999. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-magnesite.html |
|
magnesite
magnesite •calcite • campsite
•website • dacite • insight
•Monophysite • magnesite • eyesight
•hindsight • bombsight • foresight
•bauxite • quartzite • leucocyte
•Hussite • gunsight • phagocyte
•marcasite • parasite • anthracite
•oversight • worksite
•bipartite, multipartite, partite, quadripartite, sexpartite, tripartite
•transvestite • airtight • Hittite
•magnetite • appetite • stalactite
•watertight • Levite • Muscovite
•Hepplewhite • bobwhite
|
|
|
Cite this article
"magnesite." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>. "magnesite." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (May 27, 2012). http://www.encyclopedia.com/doc/1O233-magnesite.html "magnesite." Oxford Dictionary of Rhymes. 2007. Retrieved May 27, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-magnesite.html |
|
Search over 100 encyclopedias and dictionaries:
HighBeam™ Research, Inc. © Copyright 2012. All rights reserved.
The Encyclopedia.com advertising network includes:
