Lignite and Norite Definition

Definition of Lignite and Norite

The general Lignite and Norite 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, Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine. Along with definition of Lignite and Norite, get to know about Properties of Lignite and Norite. Get to know more information about Lignite and Norite origin and discoverer, etymology and class.

History of Lignite and Norite

The history of Lignite and Norite 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 Norite Origin and Discoverer

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

Etymology of Lignite and Norite

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

For Lignite,

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

For Norite,

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