Trondhjemite and Norite Definition

Definition of Trondhjemite and Norite

The general Trondhjemite and Norite 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, Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine. Along with definition of Trondhjemite and Norite, get to know about Properties of Trondhjemite and Norite. Get to know more information about Trondhjemite and Norite origin and discoverer, etymology and class.

History of Trondhjemite and Norite

The history of Trondhjemite and Norite 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 Norite Origin and Discoverer

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

Etymology of Trondhjemite and Norite

Along with Trondhjemite and Norite definition, know more about the etymology of Trondhjemite and Norite. Etymology of Trondhjemite and Norite gives information about origin and formation of a particular rock. Know more about Formation of Trondhjemite and Formation of Norite. The etymology of Trondhjemite is From Trondheim, Norway while that of Norite 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 Norite belong to Igneous Rocks. The sub-class, group and other categories of Trondhjemite and Norite 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 Norite,

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