The general Gneiss and Ijolite definition can be stated as: 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. On the other hand, Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite. Along with definition of Gneiss and Ijolite, get to know about Properties of Gneiss and Ijolite. Get to know more information about Gneiss and Ijolite origin and discoverer, etymology and class.
The history of Gneiss and Ijolite 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.
Gneiss and Ijolite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Gneiss and Ijolite. In this section, you will know about Gneiss and Ijolite Origin and Discoverer. Origin of Gneiss is Unknown whereas Origin of Ijolite is Finland, Europe. It is interesting to know the name of Gneiss and Ijolite discoverer. The discoverer of Gneiss and Ijolite are Unknown.
Along with Gneiss and Ijolite definition, know more about the etymology of Gneiss and Ijolite. Etymology of Gneiss and Ijolite gives information about origin and formation of a particular rock. Know more about Formation of Gneiss and Formation of Ijolite. The etymology of Gneiss is From the Middle High German verb gneist (to spark; so called because the rock glitters) while that of Ijolite is From the Middle High German verb gneist (to spark; so called because the rock glitters). The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Gneiss belongs to Metamorphic Rocks while Ijolite belongs to Igneous Rocks. The sub-class, group and other categories of Gneiss and Ijolite are listed below.
For Gneiss,
For Ijolite,