Trondhjemite and Gritstone Definition

Definition of Trondhjemite and Gritstone

The general Trondhjemite and Gritstone 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, Gritstone or grit is a hard, coarse-grained, siliceous sandstone. Along with definition of Trondhjemite and Gritstone, get to know about Properties of Trondhjemite and Gritstone. Get to know more information about Trondhjemite and Gritstone origin and discoverer, etymology and class.

History of Trondhjemite and Gritstone

The history of Trondhjemite and Gritstone 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 Gritstone Origin and Discoverer

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

Etymology of Trondhjemite and Gritstone

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

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Coarse grained rock and Opaque rock