Lignite and Picrite Definition

Definition of Lignite and Picrite

The general Lignite and Picrite 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, Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine. Along with definition of Lignite and Picrite, get to know about Properties of Lignite and Picrite. Get to know more information about Lignite and Picrite origin and discoverer, etymology and class.

History of Lignite and Picrite

The history of Lignite and Picrite 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 Picrite Origin and Discoverer

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

Etymology of Lignite and Picrite

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

• Sub-class: Durable Rock and Hard Rock
• Group: Volcanic
• Other Categories: Fine grained rock and Opaque rock