chert
a compact rock consisting essentially of microcrystalline quartz.
Origin of chert
1Other words from chert
- cherty, adjective
Words Nearby chert
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use chert in a sentence
The water was ice-cold and filtered through the chert and limestone of the country and tasted as though civilization was still something in the future.
To other chert samples, they added sulfur-containing “biomorphs,” spheres and filaments made of tiny crystals but shaped like bacteria.
Fossil mimics may be more common in ancient rocks than actual fossils | Carolyn Gramling | February 9, 2021 | Science NewsCosmidis, Nims and colleagues added sulfur-containing bacteria called Thiothrix to solidifying chert to see what might happen during actual fossilization.
Fossil mimics may be more common in ancient rocks than actual fossils | Carolyn Gramling | February 9, 2021 | Science NewsAnd because the place where they made fires was found, these mountains are called Aw-up chert-taw to this day.
Aw-Aw-Tam Indian Nights | J. William LloydMost examples from this area are made from Ft. Payne chert, which is usually patinated to a chocolate brown color.
Handbook of Alabama Archaeology: Part I Point Types | James W. Cambron
Points were made from Ft. Payne chert, Bangor nodular flint, jasper or other local materials.
Handbook of Alabama Archaeology: Part I Point Types | James W. CambronSome examples made of Ft. Payne chert show considerable patination.
Handbook of Alabama Archaeology: Part I Point Types | James W. CambronMost examples are made of Ft. Payne chert but other local materials were also used.
Handbook of Alabama Archaeology: Part I Point Types | James W. Cambron
British Dictionary definitions for chert
/ (tʃɜːt) /
a microcrystalline form of silica usually occurring as bands or layers of pebbles in sedimentary rock. Formula: SiO 2 . Varieties include flint, lyddite (Lydian stone): Also called: hornstone
Origin of chert
1Derived forms of chert
- cherty, adjective
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
Scientific definitions for chert
[ chûrt ]
A hard, brittle sedimentary rock consisting of microcrystalline quartz. It is often reddish-brown to green but can also occur in a variety of other colors, especially white, pink, brown, or black. Chert often contains impurities such as calcium, iron-oxide, or the remains of silica-rich organisms. It usually occurs as nodules in limestone and dolomite and has curved fractures.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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