- a very hard sedimentary rock, similar to chert, composed essentially of microcrystalline quartz.
Origin of novaculite
1790–1800; < Latin novācul(a) a sharp knife, razor + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for novaculite
The finest of the novaculite rocks of central Arkansas are quarried near the city.
- a fine-grained dense hard rock containing quartz and feldspar: used as a whetstone
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