Lignite and Phonolite Definition

Definition of Lignite and Phonolite

The general Lignite and Phonolite 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, Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. Along with definition of Lignite and Phonolite, get to know about Properties of Lignite and Phonolite. Get to know more information about Lignite and Phonolite origin and discoverer, etymology and class.

History of Lignite and Phonolite

The history of Lignite and Phonolite 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 Phonolite Origin and Discoverer

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

Etymology of Lignite and Phonolite

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

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