Tonalite and Picrite Definition

Definition of Tonalite and Picrite

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

History of Tonalite and Picrite

The history of Tonalite 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.

Tonalite and Picrite Origin and Discoverer

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

Etymology of Tonalite and Picrite

Along with Tonalite and Picrite definition, know more about the etymology of Tonalite and Picrite. Etymology of Tonalite and Picrite gives information about origin and formation of a particular rock. Know more about Formation of Tonalite and Formation of Picrite. The etymology of Tonalite is From Tonale Pass, northern Italy, + -ite1 while that of Picrite 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 and Picrite belong to Igneous Rocks. The sub-class, group and other categories of Tonalite and Picrite 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 Picrite,

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