Siltstone and Lignite Definition

Definition of Siltstone and Lignite

The general Siltstone and Lignite definition can be stated as: Siltstone can be defined as a fine-grained sedimentary rock which mainly consists of consolidated silt. 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 Siltstone and Lignite, get to know about Properties of Siltstone and Lignite. Get to know more information about Siltstone and Lignite origin and discoverer, etymology and class.

History of Siltstone and Lignite

The history of Siltstone 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.

Siltstone and Lignite Origin and Discoverer

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

Etymology of Siltstone and Lignite

Along with Siltstone and Lignite definition, know more about the etymology of Siltstone and Lignite. Etymology of Siltstone and Lignite gives information about origin and formation of a particular rock. Know more about Formation of Siltstone and Formation of Lignite. The etymology of Siltstone is From English word silt and stone and from Proto-Indo-European root sal and stainaz while that of Lignite is From English word silt and stone and from Proto-Indo-European root sal and stainaz. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Siltstone and Lignite belong to Sedimentary Rocks. The sub-class, group and other categories of Siltstone and Lignite are listed below.

For Siltstone,

• 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