Troctolite and Gneiss Definition

Definition of Troctolite and Gneiss

The general Troctolite and Gneiss definition can be stated as: Troctolite is a mafic intrusive rock type. It consists essentially of major but variable amounts of olivine and calcic plagioclase along with minor pyroxene. It is an olivine-rich anorthosite, or a pyroxene-depleted relative of gabbro. 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 Troctolite and Gneiss, get to know about Properties of Troctolite and Gneiss. Get to know more information about Troctolite and Gneiss origin and discoverer, etymology and class.

History of Troctolite and Gneiss

The history of Troctolite 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.

Troctolite and Gneiss Origin and Discoverer

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

Etymology of Troctolite and Gneiss

Along with Troctolite and Gneiss definition, know more about the etymology of Troctolite and Gneiss. Etymology of Troctolite and Gneiss gives information about origin and formation of a particular rock. Know more about Formation of Troctolite and Formation of Gneiss. The etymology of Troctolite is From German Troklotit, from Greek trōktēs, a marine fish (taken to be trout) while that of Gneiss is From German Troklotit, from Greek trōktēs, a marine fish (taken to be trout). The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Troctolite belongs to Igneous Rocks while Gneiss belongs to Metamorphic Rocks. The sub-class, group and other categories of Troctolite and Gneiss are listed below.

For Troctolite,

• Sub-class: Durable Rock and Hard Rock
• Group: Plutonic
• Other Categories: Coarse grained rock and Opaque rock

For Gneiss,

• Sub-class: Durable Rock and Hard Rock
• Group:
• Other Categories: Coarse grained rock, Medium grained rock and Opaque rock