Trachyte and Trondhjemite Definition

Definition of Trachyte and Trondhjemite

The general Trachyte and Trondhjemite definition can be stated as: Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar. 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 Trachyte and Trondhjemite, get to know about Properties of Trachyte and Trondhjemite. Get to know more information about Trachyte and Trondhjemite origin and discoverer, etymology and class.

History of Trachyte and Trondhjemite

The history of Trachyte 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.

Trachyte and Trondhjemite Origin and Discoverer

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

Etymology of Trachyte and Trondhjemite

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

For Trachyte,

• 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