What is another word for chert?
Pronunciation: [t͡ʃˈɜːt] (IPA) 
Chert is a type of sedimentary rock that is primarily composed of silica. There are a number of synonyms for chert, which include flint, hornstone, jasper, and agate. Flint and chert are often used interchangeably, as flint is simply a type of chert that is particularly hard and brittle. Hornstone is another type of chert that is known for its toughness and resistance to fracturing, while jasper is a form of chert that is often colored and used for decorative purposes. Agate is a type of chert that is characterized by its banded appearance, and is frequently used in jewelry making and other decorative applications.
