Variolite and Nepheline Syenite Definition

Definition of Variolite and Nepheline Syenite

The general Variolite and Nepheline Syenite definition can be stated as: 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. On the other hand, Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz. Along with definition of Variolite and Nepheline Syenite, get to know about Properties of Variolite and Nepheline Syenite. Get to know more information about Variolite and Nepheline Syenite origin and discoverer, etymology and class.

History of Variolite and Nepheline Syenite

The history of Variolite and Nepheline Syenite 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.

Variolite and Nepheline Syenite Origin and Discoverer

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

Etymology of Variolite and Nepheline Syenite

Along with Variolite and Nepheline Syenite definition, know more about the etymology of Variolite and Nepheline Syenite. Etymology of Variolite and Nepheline Syenite gives information about origin and formation of a particular rock. Know more about Formation of Variolite and Formation of Nepheline Syenite. The etymology of Variolite is From Latin varius, speckled, variegated while that of Nepheline Syenite is From Latin varius, speckled, variegated. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Variolite and Nepheline Syenite belong to Igneous Rocks. The sub-class, group and other categories of Variolite and Nepheline Syenite are listed below.

For Variolite,

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

For Nepheline Syenite,

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