Ijolite and Theralite Definition

Definition of Ijolite and Theralite

The general Ijolite and Theralite definition can be stated as: Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite. On the other hand, Theralite is a plutonic hylocrystalline igneous rock consisting of augite, olivine, calcic plagioclase and nepheline. Along with definition of Ijolite and Theralite, get to know about Properties of Ijolite and Theralite. Get to know more information about Ijolite and Theralite origin and discoverer, etymology and class.

History of Ijolite and Theralite

The history of Ijolite and Theralite 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.

Ijolite and Theralite Origin and Discoverer

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

Etymology of Ijolite and Theralite

Along with Ijolite and Theralite definition, know more about the etymology of Ijolite and Theralite. Etymology of Ijolite and Theralite gives information about origin and formation of a particular rock. Know more about Formation of Ijolite and Formation of Theralite. The etymology of Ijolite is From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone while that of Theralite is From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Ijolite and Theralite belong to Igneous Rocks. The sub-class, group and other categories of Ijolite and Theralite are listed below.

For Ijolite,

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

For Theralite,

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