Ijolite and Dacite Definition

Definition of Ijolite and Dacite

The general Ijolite and Dacite 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, Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite. Along with definition of Ijolite and Dacite, get to know about Properties of Ijolite and Dacite. Get to know more information about Ijolite and Dacite origin and discoverer, etymology and class.

History of Ijolite and Dacite

The history of Ijolite and Dacite 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 Dacite Origin and Discoverer

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

Etymology of Ijolite and Dacite

Along with Ijolite and Dacite definition, know more about the etymology of Ijolite and Dacite. Etymology of Ijolite and Dacite gives information about origin and formation of a particular rock. Know more about Formation of Ijolite and Formation of Dacite. 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 Dacite 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 Dacite belong to Igneous Rocks. The sub-class, group and other categories of Ijolite and Dacite are listed below.

For Ijolite,

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

For Dacite,

• Sub-class: Durable Rock and Soft Rock
• Group: Volcanic
• Other Categories: Fine grained rock, Medium grained rock and Opaque rock