Lignite and Adamellite Definition

Definition of Lignite and Adamellite

The general Lignite and Adamellite 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, Adamellite is a coarse-grained porphyritic igneous rock, a variety of Monzogranite and dominated by phenocrysts of orthoclase in a granular groundmass of perthite, plagioclase and quartz. Along with definition of Lignite and Adamellite, get to know about Properties of Lignite and Adamellite. Get to know more information about Lignite and Adamellite origin and discoverer, etymology and class.

History of Lignite and Adamellite

The history of Lignite and Adamellite 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 Adamellite Origin and Discoverer

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

Etymology of Lignite and Adamellite

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

• Sub-class: Durable Rock and Hard Rock
• Group: Plutonic
• Other Categories: Coarse grained rock and Opaque rock