Felsite and Trondhjemite Definition

Definition of Felsite and Trondhjemite

The general Felsite and Trondhjemite definition can be stated as: Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition. 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 Felsite and Trondhjemite, get to know about Properties of Felsite and Trondhjemite. Get to know more information about Felsite and Trondhjemite origin and discoverer, etymology and class.

History of Felsite and Trondhjemite

The history of Felsite 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.

Felsite and Trondhjemite Origin and Discoverer

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

Etymology of Felsite and Trondhjemite

Along with Felsite and Trondhjemite definition, know more about the etymology of Felsite and Trondhjemite. Etymology of Felsite and Trondhjemite gives information about origin and formation of a particular rock. Know more about Formation of Felsite and Formation of Trondhjemite. The etymology of Felsite is From English feldspar and -ite while that of Trondhjemite is From English feldspar and -ite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Felsite and Trondhjemite belong to Igneous Rocks. The sub-class, group and other categories of Felsite and Trondhjemite are listed below.

For Felsite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• 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