Syenite and Andesite Definition

Definition of Syenite and Andesite

The general Syenite and Andesite definition can be stated as: Syenite is a coarse-grained igneous rock which is composed mainly of alkali feldspar and various ferromagnesian minerals. 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 Syenite and Andesite, get to know about Properties of Syenite and Andesite. Get to know more information about Syenite and Andesite origin and discoverer, etymology and class.

History of Syenite and Andesite

The history of 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.

Syenite and Andesite Origin and Discoverer

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 Syenite and Andesite. In this section, you will know about Syenite and Andesite Origin and Discoverer. Origin of Syenite is Unknown whereas Origin of Andesite is North America. It is interesting to know the name of Syenite and Andesite discoverer. The discoverer of Syenite and Andesite are Unknown.

Etymology of Syenite and Andesite

Along with Syenite and Andesite definition, know more about the etymology of Syenite and Andesite. Etymology of Syenite and Andesite gives information about origin and formation of a particular rock. Know more about Formation of Syenite and Formation of Andesite. The etymology of Syenite is From French syénite, from Latin Syenites (lapis ) (stone) of Syene while that of Andesite is From French syénite, from Latin Syenites (lapis ) (stone) of Syene. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Syenite and Andesite belong to Igneous Rocks. The sub-class, group and other categories of Syenite and Andesite are listed below.

For Syenite,

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

For Andesite,

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