Tephrite and Variolite Definition

Definition of Tephrite and Variolite

The general Tephrite and Variolite definition can be stated as: Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock. 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 Tephrite and Variolite, get to know about Properties of Tephrite and Variolite. Get to know more information about Tephrite and Variolite origin and discoverer, etymology and class.

History of Tephrite and Variolite

The history of Tephrite 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.

Tephrite and Variolite Origin and Discoverer

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

Etymology of Tephrite and Variolite

Along with Tephrite and Variolite definition, know more about the etymology of Tephrite and Variolite. Etymology of Tephrite and Variolite gives information about origin and formation of a particular rock. Know more about Formation of Tephrite and Formation of Variolite. The etymology of Tephrite is From Greek tephra, ashes from Indo-European base, to burn while that of Variolite is From Greek tephra, ashes from Indo-European base, to burn. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Tephrite and Variolite belong to Igneous Rocks. The sub-class, group and other categories of Tephrite and Variolite are listed below.

For Tephrite,

• Sub-class: Durable Rock and Hard Rock
• Group: Volcanic
• 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