Eclogite and Lignite Definition

Definition of Eclogite and Lignite

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

History of Eclogite and Lignite

The history of Eclogite 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.

Eclogite and Lignite Origin and Discoverer

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

Etymology of Eclogite and Lignite

Along with Eclogite and Lignite definition, know more about the etymology of Eclogite and Lignite. Etymology of Eclogite and Lignite gives information about origin and formation of a particular rock. Know more about Formation of Eclogite and Formation of Lignite. The etymology of Eclogite is From French, Greek eklogē selection with reference to the selective content of the rock + -ite1 while that of Lignite is From French, Greek eklogē selection with reference to the selective content of the rock + -ite1. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Eclogite belongs to Metamorphic Rocks while Lignite belongs to Sedimentary Rocks. The sub-class, group and other categories of Eclogite and Lignite are listed below.

For Eclogite,

• Sub-class: Durable Rock and Medium Hardness 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