Lignite and Eclogite Definition

Definition of Lignite and Eclogite

The general Lignite and Eclogite 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, Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature. Along with definition of Lignite and Eclogite, get to know about Properties of Lignite and Eclogite. Get to know more information about Lignite and Eclogite origin and discoverer, etymology and class.

History of Lignite and Eclogite

The history of Lignite and Eclogite 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 Eclogite Origin and Discoverer

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

Etymology of Lignite and Eclogite

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

For Lignite,

• Sub-class: Durable Rock and Soft Rock
• Group:
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock

For Eclogite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group:
• Other Categories: Fine grained rock and Opaque rock