Syenite and Gneiss Definition

Definition of Syenite and Gneiss

The general Syenite and Gneiss definition can be stated as: Syenite is a coarse-grained igneous rock which is composed mainly of alkali feldspar and various ferromagnesian minerals. 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 Syenite and Gneiss, get to know about Properties of Syenite and Gneiss. Get to know more information about Syenite and Gneiss origin and discoverer, etymology and class.

History of Syenite and Gneiss

The history of Syenite 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.

Syenite and Gneiss Origin and Discoverer

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

Etymology of Syenite and Gneiss

Along with Syenite and Gneiss definition, know more about the etymology of Syenite and Gneiss. Etymology of Syenite and Gneiss gives information about origin and formation of a particular rock. Know more about Formation of Syenite and Formation of Gneiss. The etymology of Syenite is From French syénite, from Latin Syenites (lapis ) (stone) of Syene while that of Gneiss is From French syénite, from Latin Syenites (lapis ) (stone) of Syene. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Syenite belongs to Igneous Rocks while Gneiss belongs to Metamorphic Rocks. The sub-class, group and other categories of Syenite and Gneiss are listed below.

For Syenite,

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