olivine
From: The Columbia Encyclopedia, Sixth Edition
|
Date: 2008
olivine , an iron-magnesium silicate mineral, (Mg,Fe) 2 SiO 4 , crystallizing in the orthorhombic system. It is a common constituent of magnesium-rich, silica-poor igneous rocks; metamorphism of some high magnesium sediments also can form olivine. Dunite consists almost entirely of olivine. It also occurs in lunar rocks and meteorites. Olivine has a characteristic yellow-green to olive-green color, hence the name. Transparent olivine of good color can be cut into gemstones; the gem form is known as peridot. Sources of gem-quality olivine are St. John's Island in the Red Sea, Myanmar, and Arizona. Magnesium-rich olivine has a high melting point and is used in the manufacture of refractories. It was formerly called chrysolite.
Author not available, OLIVINE.,
The Columbia Encyclopedia, Sixth Edition 2008
The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press
For permission to reuse this article, contact Copyright Clearance Center.
Related articles from HighBeam Research:
|
Clinopyroxene, orthopyroxene, and olivine chemistries in ultramafic to mafic xenoliths.(Collegiate Communications--Undergraduate)
Proceedings of the North Dakota Academy of Science; 4/1/2005; Heinle, Shannon Perkins, Dexter; 625 words;
... 1) determining mineral composition of olivine, clinopyroxene, and orthopyroxene in the ... characteristics or orthopyroxene, clinopyroxene, and olivine; 3) comparing mineral chemistry and zoning ... The most abundant minerals found were olivine, clinopyroxene, and orthopyroxene. Spinel ...
|
|
Crew Gold Corp Signs Agreement to Sell all its Shares in Seqi Olivine to Minelco AB
CCNMatthews Newswire; 4/1/2005; 370 words;
... agreement to sell all of its shares in Seqi Olivine A/S to Minelco AB has been signed on March ... business." Jan A. Vestrum President & CEO This news release contains certain "Forward-Looking ... contact information or to subscribe to future news releases, please visit our new website ...
|
|
Olivine: an under-used raw material. (refractory material)
Ceramic Industry; 12/1/1993; McCracken, W.H. Slagnes, Steinar; 1205 words;
Olivine is a magnesium iron silicate refractory mineral that is ... industrial furnaces around the world, prindpally in Europe. Olivine is reported to constitute a major part of the Earth's core ... adequately developed. The first-known effective use of olivine as a refractory was in Norway in the mid-1800s, ...
|
|
Analysis: Green mineral olivine found on Mars may hold clues to past climate on the planet
All Things Considered (NPR); 10/24/2003; ROBERT SIEGEL; 721 words;
... Surveyor spacecraft has detected the mineral olivine in the Nils Fossae region of Mars. The significance ... the red planet. Hoefen's primary interest is olivine. It exists on Earth in the mantle and the ... a nice warm, wet planet. Hoefen says when olivine shows up on the surface of Earth, it ...
|
|
Grinding methods to enhance the reactivity of olivine
Minerals & Metallurgical Processing; 8/1/2005; Summers, C A; Dahlin, D C; Rush, G E; O'Connor, W K; Gerdemann, S J; 2785 words;
... ultrafine grinding techniques to enhance olivine reactivity in mineral carbonation reactions. Activated olivine is one of several solid feed materials ... Keywords: Comminution, Ultrafine grinding, Olivine reactivity, Mechanical activation, Reactivity ...
|
|
Helen Olivine, 86 Was a volunteer in civic groups
The Boston Globe; 7/21/1991; 188 words;
Mrs. Helen Tipple (Hitchcock) Olivine, a volunteer in numerous civic organizations ... of Orleans. Born in Oxford, N.Y., Mrs. Olivine graduated from Cambridge High and Latin ... Church of the Holy Spirit in Orleans, Mrs. Olivine was active in volunteer organizations ...
|
|
OBIT - ALTIZER, OLIVINE KATHERINE
Roanoke Times & World News; 3/15/2007; 31 words;
Olivine Katherine Altizer, 71, of Pulaski, Va., passed away Tuesday, March 13, 2007. A funeral service will be conducted at 11 a.m. on Friday, March 16, 2007, from Stevens Funeral Chapel in Pulaski.
|
|
OBIT - SANDERS, OLIVINE WHITLEY
Roanoke Times & World News; 12/5/2006; 224 words;
Olivine Whitley Sanders, 95, of Covington, Va. and formerly of Saltville, Va., went to be with her Lord on December 2, 2006. She was preceded ...
|
|
Agro-processing company Cotton Company of Zimbabwe purchased H.J. Heinz's 49% stake in cooking oil maker Olivine Industries.(MERGER RELATED NEWS)
The Food Institute Report; 9/10/2007; 32 words;
Agro-processing company COTTON COMPANY OF ZIMBABWE purchased H.J. HEINZ'S 49% stake in cooking oil maker OLIVINE INDUSTRIES in a deal facilitated by a government-owned investment company ... Reuters (Sept. 3)
|
|
Crew Gold Corp Finalize Seqi Olivine Sales Agreement-All Regulatory Approvals Received
CCNMatthews Newswire; 7/1/2005; 284 words;
... agreement to sell all of its shares in Seqi Olivine A/S to Minelco AB. The first payment of ... year. Jan A. Vestrum President & CEO This news release contains certain "Forward-Looking ... contact information or to subscribe to future news releases, please visit our new website ...
|
|
Gallery Resources Limited: Shabogamo Drill Hole Intersects Thick Sulphide Zones Hosted in Olivine Gabbro
CCNMatthews Newswire; 7/26/2005; 809 words;
... mineralization. This new zone is located at a much deeper level in olivine-bearing gabbro and shows a noteworthy increase in sulphide content ... in the province. The technical information contained in this news release was collected and compiled by Victor A. French, P.Geo ...
|
|
Recent Court decisions.
Journal of Risk and Insurance; 6/1/2003; Stempel, Jeffrey W.; 2980 words;
... financed. TEPCO had no similar arrangement with Olivine, the other named insured and the owner of ... intent to cancel to Clearwater-but not to Olivine. Clearwater did not respond to the notice ... effective February 17, 1998, without notifying Olivine. See 52 P.3d at 496. Less than a month later, ...
|
|
The SNC meteorites: basaltic igneous processes on Mars
Journal of the Geological Society; 3/1/2006; Bridges, J C; Warren, P H; 17127 words;
... have a subclassification as olivine-phyric. There are six peridotitic ... nakhlites are a group of six olivine clinopyroxenites and one pyroxenite ... specimen current. The X-ray maps of Governador Valadares were ... specimen current and 20 kV The maps obtained were then processed ... augite, pigeonite, ...
|
|
Petrology and geochemistry of a cumulate xenolith suite from Bute: evidence for late Palaeozoic crustal underplating beneath SW Scotland
Journal of the Geological Society; 11/1/2007; Downes, H; Upton, B G J; Connolly, J; Beard, A D; Bodinier, J-L; 6826 words;
... dominated by poikilitic wehrlites and olivine clinopyroxenites. Major element variation ... xenoliths, up to 10 cm across, occur in an olivine basaltic sheet at Hawk's Nib on the SE ... being analysed in duplicate. Except for olivine gabbro HN72, the results are consistent ...
|
|
Improved synthesis of polyorganosiloxanes from mineral silicates by mixed mineral trimethylsilylation.
Chemistry and Industry; 2/15/1993; Hayes, Peter R. Kendrick, Dafydd ap Parsonage, John R.; 1090 words;
... O.sub.1/2~. The trimethylsilylation of olivine and suzorite have previously been studied ... results of the trimethylsilylation of olivine and suzorite with inert and reactive minerals ... respectively. The trimethylsilylation of olivine without any inert or reactive mineral ...
|
See all results from premium newspaper and magazine articles, images, maps and more at HighBeam Research.
Related articles from newspapers, magazines and other sources:
Igneous rock associations 4. Oceanic island volcanism I mineralogy and petrology.(Series)
Geoscience Canada; 3/1/2005; Greenough, John D. Dostal, Jaroslav Mallory-Greenough, Leanne M.; 8715 words;
|
Pillow basalt.(Word to the Wise)(Editorial)
Rocks & Minerals; 7/1/2005; Rakovan, John; 690 words;
|
Celestial climate driver: a perspective from four billion years of the carbon cycle.
Geoscience Canada; 3/1/2005; Veizer, Jan; 10051 words;
|
Modular sauna.(Product Pipeline)
Pool & Spa News; 9/19/2003; Harman, Shannon; 74 words;
|
Geological, ocean, and mineral C[O.sub.2] sequestration options: a technical review.
Geoscience Canada; 3/1/2004; Voormeij, Danae A. Simandl, George J.; 10011 words;
|
Solid solution.(mineral properties)
Rocks & Minerals; 11/1/2005; Rakovan, John; 1315 words;
|
Minerals of the Hutter mine: a new manganese-barium mineral locality in Northern Pittsylvania County, Virginia.
Rocks & Minerals; 9/1/2002; Beard, James S. Tracy, Robert J. Henika, William S.; 4948 words;
|
Igneous Rock Associations 7. Arc magmatism I: relationship between subduction and magma genesis.(SERIES)
Geoscience Canada; 12/1/2006; Murphy, J. Brendan; 12934 words;
|
Igneous rock associations 5. oceanic island volcanism II: mantle processes.(Series)
Geoscience Canada; 6/1/2005; Greenough, John D. Dostal, Jaroslav Mallory-Greenough, Leanne M.; 10204 words;
|
Smithsonian Microbeam Standards.
Journal of Research of the National Institute of Standards and Technology; 11/1/2002; Jarosewich, Eugene; 2739 words;
|
|
|