Chert and Lignite Definition

Definition of Chert and Lignite

The general Chert and Lignite definition can be stated as: Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture. On the other hand, Lignite is a soft brownish coal which shows traces of plants and is intermediate between bituminous coal and peat. Along with definition of Chert and Lignite, get to know about Properties of Chert and Lignite. Get to know more information about Chert and Lignite origin and discoverer, etymology and class.

History of Chert and Lignite

The history of Chert and Lignite gives information about where the rock was found and who was its discoverer. Almost each and every aspect of Earth's history is recorded in rocks be it the volcanoes which were erupted or the plants, animals and organisms which are now extinct, as rocks are present from millions of years.

Chert and Lignite Origin and Discoverer

Chert and Lignite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Chert and Lignite. In this section, you will know about Chert and Lignite Origin and Discoverer. Origin of Chert is Unknown whereas Origin of Lignite is France. It is interesting to know the name of Chert and Lignite discoverer. The discoverer of Chert and Lignite are Unknown.

Etymology of Chert and Lignite

Along with Chert and Lignite definition, know more about the etymology of Chert and Lignite. Etymology of Chert and Lignite gives information about origin and formation of a particular rock. Know more about Formation of Chert and Formation of Lignite. The etymology of Chert is From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use while that of Lignite is From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Chert and Lignite belong to Sedimentary Rocks. The sub-class, group and other categories of Chert and Lignite are listed below.

For Chert,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock

For Lignite,

• Sub-class: Durable Rock and Soft Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock