Ijolite and Trondhjemite Definition

Definition of Ijolite and Trondhjemite

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

History of Ijolite and Trondhjemite

The history of Ijolite and Trondhjemite 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.

Ijolite and Trondhjemite Origin and Discoverer

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

Etymology of Ijolite and Trondhjemite

Along with Ijolite and Trondhjemite definition, know more about the etymology of Ijolite and Trondhjemite. Etymology of Ijolite and Trondhjemite gives information about origin and formation of a particular rock. Know more about Formation of Ijolite and Formation of Trondhjemite. The etymology of Ijolite is From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone while that of Trondhjemite is From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Ijolite and Trondhjemite belong to Igneous Rocks. The sub-class, group and other categories of Ijolite and Trondhjemite are listed below.

For Ijolite,

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

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