Trondhjemite and Essexite  Definition

Definition of Trondhjemite and Essexite 

The general Trondhjemite and Essexite  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, Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock. Along with definition of Trondhjemite and Essexite , get to know about Properties of Trondhjemite and Essexite . Get to know more information about Trondhjemite and Essexite  origin and discoverer, etymology and class.

History of Trondhjemite and Essexite 

The history of Trondhjemite and Essexite  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 Essexite  Origin and Discoverer

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

Etymology of Trondhjemite and Essexite 

Along with Trondhjemite and Essexite  definition, know more about the etymology of Trondhjemite and Essexite . Etymology of Trondhjemite and Essexite  gives information about origin and formation of a particular rock. Know more about Formation of Trondhjemite and Formation of Essexite . The etymology of Trondhjemite is not available while that of Essexite  is not available. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Trondhjemite and Essexite  belong to Igneous Rocks. The sub-class, group and other categories of Trondhjemite and Essexite  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 Essexite ,

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