Amphibolite and Lignite Definition

Definition of Amphibolite and Lignite

The general Amphibolite and Lignite definition can be stated as: Amphibolite can be defined as a granular metamorphic rock which mainly consist of hornblende and plagioclase. 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 Amphibolite and Lignite, get to know about Properties of Amphibolite and Lignite. Get to know more information about Amphibolite and Lignite origin and discoverer, etymology and class.

History of Amphibolite and Lignite

The history of Amphibolite 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.

Amphibolite and Lignite Origin and Discoverer

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

Etymology of Amphibolite and Lignite

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

For Amphibolite,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Medium 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