Syenite and Variolite Definition

Definition of Syenite and Variolite

The general Syenite and Variolite 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, Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance. Along with definition of Syenite and Variolite, get to know about Properties of Syenite and Variolite. Get to know more information about Syenite and Variolite origin and discoverer, etymology and class.

History of Syenite and Variolite

The history of Syenite and Variolite 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 Variolite Origin and Discoverer

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

Etymology of Syenite and Variolite

Along with Syenite and Variolite definition, know more about the etymology of Syenite and Variolite. Etymology of Syenite and Variolite gives information about origin and formation of a particular rock. Know more about Formation of Syenite and Formation of Variolite. The etymology of Syenite is From French syénite, from Latin Syenites (lapis ) (stone) of Syene while that of Variolite 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 Variolite belong to Igneous Rocks. The sub-class, group and other categories of Syenite and Variolite 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 Variolite,

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