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[kim-ber-lahyt] /ˈkɪm bərˌlaɪt/
Petrology. a variety of micaceous peridotite, low in silica content and high in magnesium content, in which diamonds are formed.
Origin of kimberlite
1885-90; named after Kimberley, South Africa; see -ite1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for kimberlite
  • The alluvial terraces are exhausted and the future lies in the underlying kimberlite rock.
  • In contrast to alluvial diamonds, there are kimberlite diamond deposits.
  • Because the kimberlite is much softer than the surrounding granite, there were deeper depressions in the areas with kimberlite.
  • Diamonds, for instance, are found in rocks known as kimberlite.
  • Exploration for additional kimberlite pipes continues.
British Dictionary definitions for kimberlite


an intrusive igneous rock generated at great depth in the earth's mantle and consisting largely of olivine and phlogopite. It often contains diamonds
Word Origin
C19: from Kimberley + -ite1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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kimberlite in Science
A type of peridotite consisting of a fine-grained matrix of calcite and olivine and containing phenocrysts of olivine, garnet, and sometimes diamonds. Kimberlites are found in long, vertical volcanic pipes, especially in South Africa.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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