Lignite and Foidolite Definition

Definition of Lignite and Foidolite

The general Lignite and Foidolite 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, Foidolite is a rare type of coarse-grained intrusive igneous rock with a feldspathoid mineral content greater than 60%. Along with definition of Lignite and Foidolite, get to know about Properties of Lignite and Foidolite. Get to know more information about Lignite and Foidolite origin and discoverer, etymology and class.

History of Lignite and Foidolite

The history of Lignite and Foidolite 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 Foidolite Origin and Discoverer

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

Etymology of Lignite and Foidolite

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

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