Picrite and Tonalite Definition

Definition of Picrite and Tonalite

The general Picrite and Tonalite definition can be stated as: Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine. On the other hand, Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture. Along with definition of Picrite and Tonalite, get to know about Properties of Picrite and Tonalite. Get to know more information about Picrite and Tonalite origin and discoverer, etymology and class.

History of Picrite and Tonalite

The history of Picrite and Tonalite 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.

Picrite and Tonalite Origin and Discoverer

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

Etymology of Picrite and Tonalite

Along with Picrite and Tonalite definition, know more about the etymology of Picrite and Tonalite. Etymology of Picrite and Tonalite gives information about origin and formation of a particular rock. Know more about Formation of Picrite and Formation of Tonalite. The etymology of Picrite is From Greek pikros bitter + -ite, 19th century while that of Tonalite is From Greek pikros bitter + -ite, 19th century. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Picrite and Tonalite belong to Igneous Rocks. The sub-class, group and other categories of Picrite and Tonalite are listed below.

For Picrite,

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

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