Tuff and Lignite Definition

Definition of Tuff and Lignite

The general Tuff and Lignite definition can be stated as: Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. On the other hand, Lignite is a soft brownish coal which shows traces of plants and is intermediate between bituminous coal and peat. Along with definition of Tuff and Lignite, get to know about Properties of Tuff and Lignite. Get to know more information about Tuff and Lignite origin and discoverer, etymology and class.

History of Tuff and Lignite

The history of Tuff and Lignite 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.

Tuff and Lignite Origin and Discoverer

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

Etymology of Tuff and Lignite

Along with Tuff and Lignite definition, know more about the etymology of Tuff and Lignite. Etymology of Tuff and Lignite gives information about origin and formation of a particular rock. Know more about Formation of Tuff and Formation of Lignite. The etymology of Tuff is From a Latin word tophous then in Italian tufo and finally tuff while that of Lignite is From a Latin word tophous then in Italian tufo and finally tuff. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Tuff belongs to Igneous Rocks while Lignite belongs to Sedimentary Rocks. The sub-class, group and other categories of Tuff and Lignite are listed below.

For Tuff,

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

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