a sandstone consisting of interlocking quartz grains and mica scales, found principally in Brazil and North Carolina, and noted for its flexibility in thin slabs.
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How to use itacolumite in a sentence
Some authorities hold that the diamond has been formed in certain quartz veins which traverse the itacolumite.
itacolumite is yellow or pale-brown, and splits readily into thin flat slabs.
British Dictionary definitions for itacolumite
a fine-grained micaceous sandstone that occurs in thin flexible slabs
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