Argillite and Trondhjemite Definition

Definition of Argillite and Trondhjemite

The general Argillite and Trondhjemite definition can be stated as: Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate. 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 Argillite and Trondhjemite, get to know about Properties of Argillite and Trondhjemite. Get to know more information about Argillite and Trondhjemite origin and discoverer, etymology and class.

History of Argillite and Trondhjemite

The history of Argillite 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.

Argillite and Trondhjemite Origin and Discoverer

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

Etymology of Argillite and Trondhjemite

Along with Argillite and Trondhjemite definition, know more about the etymology of Argillite and Trondhjemite. Etymology of Argillite and Trondhjemite gives information about origin and formation of a particular rock. Know more about Formation of Argillite and Formation of Trondhjemite. The etymology of Argillite is From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite while that of Trondhjemite is From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Argillite belongs to Sedimentary Rocks while Trondhjemite belongs to Igneous Rocks. The sub-class, group and other categories of Argillite and Trondhjemite are listed below.

For Argillite,

• Sub-class: Durable Rock and Soft Rock
• Group: Not applicable
• Other Categories: Fine 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