What does CHERT mean?

Heres the information you requested: Chert 1. Parts of Speech: Noun 2. Definitions: Chert is a hard, fine-grained sedimentary rock that is often used to make tools and weapons. It is composed of microcrystalline quartz and can be found in a variety of colors, including white, gray, brown, and red. 3. Pronunciations: US: /tʃərt/
UK: /tʃəːt/ 4. Origin and Usage: Chert is found in many parts of the world and has been used for thousands of years by humans to make tools and weapons. It was also used in the construction of buildings and monuments, such as Stonehenge. The word "chert" comes from the Old English word "cweorn," which means "millstone." 5. Synonyms: Flint, quartzite, jasper, agate, silcrete. 6. Related Words: Beryl, shale, slate, gneiss, basalt. 7. Example Sentences: - The Native Americans used chert to make arrowheads and knives. - The construction of Stonehenge involved the use of chert. - The geology professor showed the students how to identify chert in the field. - The quarry was rich in chert, which made it a valuable resource for toolmakers. - The chert was too hard to work with by hand, so the workers used special tools to shape it.