Slate and Trondhjemite Definition

Definition of Slate and Trondhjemite

The general Slate and Trondhjemite definition can be stated as: Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. 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 Slate and Trondhjemite, get to know about Properties of Slate and Trondhjemite. Get to know more information about Slate and Trondhjemite origin and discoverer, etymology and class.

History of Slate and Trondhjemite

The history of Slate 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.

Slate and Trondhjemite Origin and Discoverer

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

Etymology of Slate and Trondhjemite

Along with Slate and Trondhjemite definition, know more about the etymology of Slate and Trondhjemite. Etymology of Slate and Trondhjemite gives information about origin and formation of a particular rock. Know more about Formation of Slate and Formation of Trondhjemite. The etymology of Slate is From Old French esclate, from esclat (French éclat) while that of Trondhjemite is From Old French esclate, from esclat (French éclat). The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Slate belongs to Metamorphic Rocks while Trondhjemite belongs to Igneous Rocks. The sub-class, group and other categories of Slate and Trondhjemite are listed below.

For Slate,

• Sub-class: Durable Rock and Medium Hardness 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