Borolanite and Gneiss Definition

Definition of Borolanite and Gneiss

The general Borolanite and Gneiss definition can be stated as: Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix. On the other hand, Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks. Along with definition of Borolanite and Gneiss, get to know about Properties of Borolanite and Gneiss. Get to know more information about Borolanite and Gneiss origin and discoverer, etymology and class.

History of Borolanite and Gneiss

The history of Borolanite and Gneiss 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.

Borolanite and Gneiss Origin and Discoverer

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

Etymology of Borolanite and Gneiss

Along with Borolanite and Gneiss definition, know more about the etymology of Borolanite and Gneiss. Etymology of Borolanite and Gneiss gives information about origin and formation of a particular rock. Know more about Formation of Borolanite and Formation of Gneiss. The etymology of Borolanite is From Alkalic Igneous complex near Loch Borralan in northwest Scotland while that of Gneiss is From Alkalic Igneous complex near Loch Borralan in northwest Scotland. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Borolanite belongs to Igneous Rocks while Gneiss belongs to Metamorphic Rocks. The sub-class, group and other categories of Borolanite and Gneiss are listed below.

For Borolanite,

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

For Gneiss,

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