Tonalite and Schist Definition

Definition of Tonalite and Schist

The general Tonalite and Schist definition can be stated as: Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture. On the other hand, Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. Along with definition of Tonalite and Schist, get to know about Properties of Tonalite and Schist. Get to know more information about Tonalite and Schist origin and discoverer, etymology and class.

History of Tonalite and Schist

The history of Tonalite and Schist 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.

Tonalite and Schist Origin and Discoverer

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

Etymology of Tonalite and Schist

Along with Tonalite and Schist definition, know more about the etymology of Tonalite and Schist. Etymology of Tonalite and Schist gives information about origin and formation of a particular rock. Know more about Formation of Tonalite and Formation of Schist. The etymology of Tonalite is From Tonale Pass, northern Italy, + -ite1 while that of Schist is From Tonale Pass, northern Italy, + -ite1. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Tonalite belongs to Igneous Rocks while Schist belongs to Metamorphic Rocks. The sub-class, group and other categories of Tonalite and Schist are listed below.

For Tonalite,

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

For Schist,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock