Lignite and Shoshonite Definition

Definition of Lignite and Shoshonite

The general Lignite and Shoshonite 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, Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass. Along with definition of Lignite and Shoshonite, get to know about Properties of Lignite and Shoshonite. Get to know more information about Lignite and Shoshonite origin and discoverer, etymology and class.

History of Lignite and Shoshonite

The history of Lignite and Shoshonite 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 Shoshonite Origin and Discoverer

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

Etymology of Lignite and Shoshonite

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

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