Lignite and Siltstone Definition

Definition of Lignite and Siltstone

The general Lignite and Siltstone definition can be stated as: Lignite is a soft brownish coal which shows traces of plants and is intermediate between bituminous coal and peat. On the other hand, Siltstone can be defined as a fine-grained sedimentary rock which mainly consists of consolidated silt. Along with definition of Lignite and Siltstone, get to know about Properties of Lignite and Siltstone. Get to know more information about Lignite and Siltstone origin and discoverer, etymology and class.

History of Lignite and Siltstone

The history of Lignite and Siltstone 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.

Lignite and Siltstone Origin and Discoverer

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

Etymology of Lignite and Siltstone

Along with Lignite and Siltstone definition, know more about the etymology of Lignite and Siltstone. Etymology of Lignite and Siltstone gives information about origin and formation of a particular rock. Know more about Formation of Lignite and Formation of Siltstone. The etymology of Lignite is From French, Latin lignum wood + -ite1 while that of Siltstone is From French, Latin lignum wood + -ite1. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Lignite and Siltstone belong to Sedimentary Rocks. The sub-class, group and other categories of Lignite and Siltstone are listed below.

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

For Siltstone,

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