Lignite and Greywacke Definition

Definition of Lignite and Greywacke

The general Lignite and Greywacke 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, Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay. Along with definition of Lignite and Greywacke, get to know about Properties of Lignite and Greywacke. Get to know more information about Lignite and Greywacke origin and discoverer, etymology and class.

History of Lignite and Greywacke

The history of Lignite and Greywacke 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 Greywacke Origin and Discoverer

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

Etymology of Lignite and Greywacke

Along with Lignite and Greywacke definition, know more about the etymology of Lignite and Greywacke. Etymology of Lignite and Greywacke gives information about origin and formation of a particular rock. Know more about Formation of Lignite and Formation of Greywacke. The etymology of Lignite is From French, Latin lignum wood + -ite1 while that of Greywacke 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 Greywacke belong to Sedimentary Rocks. The sub-class, group and other categories of Lignite and Greywacke 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 Greywacke,

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