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novaculite

[noh-vak-yuh-lahyt] /noʊˈvæk yəˌlaɪt/
noun, Petrology.
1.
a very hard sedimentary rock, similar to chert, composed essentially of microcrystalline quartz.
Origin of novaculite
1790-1800
1790-1800; < Latin novācul(a) a sharp knife, razor + -ite1
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Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for novaculite

novaculite

/nəʊˈvækjʊˌlaɪt/
noun
1.
a fine-grained dense hard rock containing quartz and feldspar: used as a whetstone
Word Origin
C18: from Latin novācula sharp knife, razor, from novāre to renew
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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