Trondhjemite and Dunite Definition

Definition of Trondhjemite and Dunite

The general Trondhjemite and Dunite definition can be stated as: Trondhjemite is a leucocratic (light-colored) intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. Trondhjemites are sometimes known as plagiogranites.. On the other hand, Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine. Along with definition of Trondhjemite and Dunite, get to know about Properties of Trondhjemite and Dunite. Get to know more information about Trondhjemite and Dunite origin and discoverer, etymology and class.

History of Trondhjemite and Dunite

The history of Trondhjemite and Dunite 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.

Trondhjemite and Dunite Origin and Discoverer

Trondhjemite and Dunite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Trondhjemite and Dunite. In this section, you will know about Trondhjemite and Dunite Origin and Discoverer. Origin of Trondhjemite is Tonale, Italy whereas Origin of Dunite is New Zealand. It is interesting to know the name of Trondhjemite and Dunite discoverer. The Discoverer of Trondhjemite is Unknown and the discoverer of Dunite is Ferdinand von Hochstetter.

Etymology of Trondhjemite and Dunite

Along with Trondhjemite and Dunite definition, know more about the etymology of Trondhjemite and Dunite. Etymology of Trondhjemite and Dunite gives information about origin and formation of a particular rock. Know more about Formation of Trondhjemite and Formation of Dunite. The etymology of Trondhjemite is From Trondheim, Norway while that of Dunite is From Trondheim, Norway. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Trondhjemite and Dunite belong to Igneous Rocks. The sub-class, group and other categories of Trondhjemite and Dunite are listed below.

For Trondhjemite,

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

For Dunite,

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