Ganister and Variolite Definition

Definition of Ganister and Variolite

The general Ganister and Variolite definition can be stated as: A ganister is a hard, fine-grained quartzose sandstone or orthoquartzite which is basically used in the manufacture of silica brick typically used to line furnaces and is a type of sedimentary rocks.. 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 Ganister and Variolite, get to know about Properties of Ganister and Variolite. Get to know more information about Ganister and Variolite origin and discoverer, etymology and class.

History of Ganister and Variolite

The history of Ganister 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.

Ganister and Variolite Origin and Discoverer

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

Etymology of Ganister and Variolite

Along with Ganister and Variolite definition, know more about the etymology of Ganister and Variolite. Etymology of Ganister and Variolite gives information about origin and formation of a particular rock. Know more about Formation of Ganister and Formation of Variolite. The etymology of Ganister is From gan′is-ter i.e a hard, close-grained siliceous stone, often forming the stratum which underlies a coal-seam while that of Variolite is From gan′is-ter i.e a hard, close-grained siliceous stone, often forming the stratum which underlies a coal-seam. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Ganister belongs to Sedimentary Rocks while Variolite belongs to Igneous Rocks. The sub-class, group and other categories of Ganister and Variolite are listed below.

For Ganister,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Fine grained rock and Opaque rock

For Variolite,

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