Trondhjemite and Shonkinite Definition

Definition of Trondhjemite and Shonkinite

The general Trondhjemite and Shonkinite 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, Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents. Along with definition of Trondhjemite and Shonkinite, get to know about Properties of Trondhjemite and Shonkinite. Get to know more information about Trondhjemite and Shonkinite origin and discoverer, etymology and class.

History of Trondhjemite and Shonkinite

The history of Trondhjemite and Shonkinite 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 Shonkinite Origin and Discoverer

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

Etymology of Trondhjemite and Shonkinite

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

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