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A blue-white mineral, Na4Al3Si3O12Cl, found in silica-poor igneous rocks.
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.


(Minerals) a blue, grey, yellow, or colourless mineral consisting of sodium aluminium silicate and sodium chloride in cubic crystalline form. It occurs in basic igneous rocks. Formula: Na4Al3Si3O12Cl
[C19: from soda + -lite]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈsoʊd lˌaɪt)

a blue mineral, sodium aluminum silicate with chlorine, Na4Al3Si3O12Cl, found in igneous rocks that contain a high percentage of sodium and potassium alkali.
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.sodalite - a vitreous mineral consisting of sodium aluminum silicate and sodium chloride in crystalline formsodalite - a vitreous mineral consisting of sodium aluminum silicate and sodium chloride in crystalline form; occurs in igneous rocks
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
igneous rock - rock formed by the solidification of molten magma
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Kwong Pui Ho (John Ho), Yangon, Myanmar, for assorted Ammolite, chrome tourmaline, hackmanite, thorite and ruby-in-quartz; rough amber, apatite, corundum, gypsum, jadeite, mica, moonstone, pollucite and tourmaline; crystals of spinel and zircon; cabochons of hematite, kyanite, opal and pargasite; and faceted quartz, spinel and tanzanite.
They also had an extremely large, pale purple hackmanite matrix specimen of museum quality, with an undamaged crystal measuring perhaps 7.5 x 10 cm, asking 63,000.
Milisenda (German Gemmological Association, IdarOberstein) and co-authors examined some gemstones with photochromism: hackmanite, tugtupite and scapolite.