wollastonite


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wol·las·ton·ite

 (wo͝ol′ə-stə-nīt′)
n.
A white to gray mineral, essentially CaSiO3, found in metamorphic rocks and used in ceramics, paints, plastics, and cements.

[After William Hyde Wollaston.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

wollastonite

(ˈwʊləstəˌnaɪt)
n
(Minerals) a white or grey mineral consisting of calcium silicate in triclinic crystalline form: occurs in metamorphosed limestones. Formula: CaSiO3
[C19: named after W. H. Wollaston (1766–1828), English physicist]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

wol•las•ton•ite

(ˈwʊl ə stəˌnaɪt)

n.
a mineral, calcium silicate, CaSiO3, occurring usu. in white, brown, or red granular masses.
[1815–25; after W. H. Wollaston; see -ite1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.wollastonite - a white or greyish mineral typically found in metamorphic limestone; a silicate of calcium
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Nyco Minerals is offering two new wollastonite products to enhance the performance of engineering plastics, alloys, and blends.
Raw Oxides--Weight (%) Materials [Na.sub.2]O MgO Si[O.sub.2] ZnO KN[O.sub.3] 0.11 -- 0.04 -- ZnO -- 0,01 0.04 99.67 BaC[O.sub.3] 0.77 -- 0.05 -- [Al.sub.2][O.sub.3] 0.44 -- -- -- Quartz 0.09 0,06 98.29 -- Wollastonite 0.26 0.40 51.60 -- Raw Oxides--Weight (%) Materials SrO [K.sub.2]O PbO CaO KN[O.sub.3] -- 40.86 -- 0.09 ZnO -- 0.14 0.10 -- BaC[O.sub.3] 0.13 -- -- 0.05 [Al.sub.2][O.sub.3] -- 0.04 -- 0.03 Quartz -- -- -- 0.07 Wollastonite -- 0.18 -- 45.9 Raw Oxides--Weight (%) Materials [Al.sub.2][O.sub.3] BaO KN[O.sub.3] -- 0.22 ZnO -- -- BaC[O.sub.3] -- 77.67 [Al.sub.2][O.sub.3] 97.79 -- Quartz 0.64 -- Wollastonite 1.01 -- Raw Oxides--Weight (%) Materials [Fe.sub.2][O.sub.3] L.O.I.
In fact, the mineral comes from the Fengjiashan wollastonite mine in the Daye district, sometimes also known as the "Daye copper mine." This locality should not be confused with the nearby Daye iron mine, a large opencast mine which has yielded no specimens of note.
A new graphite mine, Kringeltjarn, was opened in late 1996 by Tricorona Mineral, which is also evaluating the Banmossen wollastonite deposit in central Sweden.
In the Balti TPP the Ca-silicates are represented by C2S (belite--[beta]-Ca[Si.sub.2][O.sub.4]), merwinite [[Ca.sub.3]Mg[(Si[O.sub.4]).sub.2]] and wollastonite type phases (CaSi[O.sub.3]).
(4) Other clay body and glaze materials such as wollastonite, whiting, dolomite, zinc oxide and magnesium carbonate are also very small in particle size and can remain on horizontal surfaces or in the air for long periods of time.
Some fillers, such as kaolin and diatomite, were found to accelerate the photo-oxidation of polyethylene, whereas other fillers, such as wollastonite, were found to stabilize polyethylene.
For this application, the Baydur system is reinforced with 20% wollastonite for added rigidity.
Fibertec Inc., a supplier of an extensive line of glass fiber, slag wool fiber, wollastonite, mica filler, and reinforcements, has introduced two milled-glass-fiber products.
[3.] wollastonite coating immersed in simulated body fluid.