Phyllite and Trondhjemite Definition

Definition of Phyllite and Trondhjemite

The general Phyllite and Trondhjemite definition can be stated as: Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks. 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 Phyllite and Trondhjemite, get to know about Properties of Phyllite and Trondhjemite. Get to know more information about Phyllite and Trondhjemite origin and discoverer, etymology and class.

History of Phyllite and Trondhjemite

The history of Phyllite 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.

Phyllite and Trondhjemite Origin and Discoverer

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

Etymology of Phyllite and Trondhjemite

Along with Phyllite and Trondhjemite definition, know more about the etymology of Phyllite and Trondhjemite. Etymology of Phyllite and Trondhjemite gives information about origin and formation of a particular rock. Know more about Formation of Phyllite and Formation of Trondhjemite. The etymology of Phyllite is From Greek phullon leaf + -ite1 while that of Trondhjemite is From Greek phullon leaf + -ite1. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Phyllite belongs to Metamorphic Rocks while Trondhjemite belongs to Igneous Rocks. The sub-class, group and other categories of Phyllite and Trondhjemite are listed below.

For Phyllite,

• Sub-class: Durable Rock and Soft Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Fine grained rock, Medium 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