Variolite and Trachyte Definition

Definition of Variolite and Trachyte

The general Variolite and Trachyte 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, Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar. Along with definition of Variolite and Trachyte, get to know about Properties of Variolite and Trachyte. Get to know more information about Variolite and Trachyte origin and discoverer, etymology and class.

History of Variolite and Trachyte

The history of Variolite and Trachyte 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 Trachyte Origin and Discoverer

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

Etymology of Variolite and Trachyte

Along with Variolite and Trachyte definition, know more about the etymology of Variolite and Trachyte. Etymology of Variolite and Trachyte gives information about origin and formation of a particular rock. Know more about Formation of Variolite and Formation of Trachyte. The etymology of Variolite is From Latin varius, speckled, variegated while that of Trachyte 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 Trachyte belong to Igneous Rocks. The sub-class, group and other categories of Variolite and Trachyte are listed below.

For Variolite,

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

For Trachyte,

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