Nepheline Syenite and Andesite Definition

Definition of Nepheline Syenite and Andesite

The general Nepheline Syenite and Andesite definition can be stated as: Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz. On the other hand, Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. Along with definition of Nepheline Syenite and Andesite, get to know about Properties of Nepheline Syenite and Andesite. Get to know more information about Nepheline Syenite and Andesite origin and discoverer, etymology and class.

History of Nepheline Syenite and Andesite

The history of Nepheline Syenite and Andesite 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.

Nepheline Syenite and Andesite Origin and Discoverer

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

Etymology of Nepheline Syenite and Andesite

Along with Nepheline Syenite and Andesite definition, know more about the etymology of Nepheline Syenite and Andesite. Etymology of Nepheline Syenite and Andesite gives information about origin and formation of a particular rock. Know more about Formation of Nepheline Syenite and Formation of Andesite. The etymology of Nepheline Syenite is From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China while that of Andesite is From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Nepheline Syenite and Andesite belong to Igneous Rocks. The sub-class, group and other categories of Nepheline Syenite and Andesite are listed below.

For Nepheline Syenite,

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

For Andesite,

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