Trondhjemite and Ijolite Definition

Definition of Trondhjemite and Ijolite

The general Trondhjemite and Ijolite 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, Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite. Along with definition of Trondhjemite and Ijolite, get to know about Properties of Trondhjemite and Ijolite. Get to know more information about Trondhjemite and Ijolite origin and discoverer, etymology and class.

History of Trondhjemite and Ijolite

The history of Trondhjemite and Ijolite 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 Ijolite Origin and Discoverer

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

Etymology of Trondhjemite and Ijolite

Along with Trondhjemite and Ijolite definition, know more about the etymology of Trondhjemite and Ijolite. Etymology of Trondhjemite and Ijolite gives information about origin and formation of a particular rock. Know more about Formation of Trondhjemite and Formation of Ijolite. The etymology of Trondhjemite is not available while that of Ijolite 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 Ijolite belong to Igneous Rocks. The sub-class, group and other categories of Trondhjemite and Ijolite 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 Ijolite,

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