Schist and Ijolite Definition

Definition of Schist and Ijolite

The general Schist and Ijolite definition can be stated as: Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. 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 Schist and Ijolite, get to know about Properties of Schist and Ijolite. Get to know more information about Schist and Ijolite origin and discoverer, etymology and class.

History of Schist and Ijolite

The history of Schist 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.

Schist and Ijolite Origin and Discoverer

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

Etymology of Schist and Ijolite

Along with Schist and Ijolite definition, know more about the etymology of Schist and Ijolite. Etymology of Schist and Ijolite gives information about origin and formation of a particular rock. Know more about Formation of Schist and Formation of Ijolite. The etymology of Schist is From French schiste, Greek skhistos i.e. split while that of Ijolite is From French schiste, Greek skhistos i.e. split. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Schist belongs to Metamorphic Rocks while Ijolite belongs to Igneous Rocks. The sub-class, group and other categories of Schist and Ijolite are listed below.

For Schist,

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

For Ijolite,

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