Trachyandesite and Gneiss Definition

Definition of Trachyandesite and Gneiss

The general Trachyandesite and Gneiss definition can be stated as: Trachyandesite is an extrusive igneous rock.. On the other hand, Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks. Along with definition of Trachyandesite and Gneiss, get to know about Properties of Trachyandesite and Gneiss. Get to know more information about Trachyandesite and Gneiss origin and discoverer, etymology and class.

History of Trachyandesite and Gneiss

The history of Trachyandesite and Gneiss 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.

Trachyandesite and Gneiss Origin and Discoverer

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

Etymology of Trachyandesite and Gneiss

Along with Trachyandesite and Gneiss definition, know more about the etymology of Trachyandesite and Gneiss. Etymology of Trachyandesite and Gneiss gives information about origin and formation of a particular rock. Know more about Formation of Trachyandesite and Formation of Gneiss. The etymology of Trachyandesite is From French trachyandésite, trachy + andésite andesite, a lava intermediate in composition between trachyte and andesite while that of Gneiss is From French trachyandésite, trachy + andésite andesite, a lava intermediate in composition between trachyte and andesite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Trachyandesite belongs to Igneous Rocks while Gneiss belongs to Metamorphic Rocks. The sub-class, group and other categories of Trachyandesite and Gneiss are listed below.

For Trachyandesite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• Other Categories: Fine grained rock and Opaque rock

For Gneiss,

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