Slate and Ijolite Definition

Definition of Slate and Ijolite

The general Slate and Ijolite definition can be stated as: Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. 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 Slate and Ijolite, get to know about Properties of Slate and Ijolite. Get to know more information about Slate and Ijolite origin and discoverer, etymology and class.

History of Slate and Ijolite

The history of Slate 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.

Slate and Ijolite Origin and Discoverer

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

Etymology of Slate and Ijolite

Along with Slate and Ijolite definition, know more about the etymology of Slate and Ijolite. Etymology of Slate and Ijolite gives information about origin and formation of a particular rock. Know more about Formation of Slate and Formation of Ijolite. The etymology of Slate is From Old French esclate, from esclat (French éclat) while that of Ijolite is From Old French esclate, from esclat (French éclat). The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Slate belongs to Metamorphic Rocks while Ijolite belongs to Igneous Rocks. The sub-class, group and other categories of Slate and Ijolite are listed below.

For Slate,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• Other Categories: Fine 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