Hornfels and Gneiss Definition

Definition of Hornfels and Gneiss

The general Hornfels and Gneiss definition can be stated as: Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock. 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 Hornfels and Gneiss, get to know about Properties of Hornfels and Gneiss. Get to know more information about Hornfels and Gneiss origin and discoverer, etymology and class.

History of Hornfels and Gneiss

The history of Hornfels 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.

Hornfels and Gneiss Origin and Discoverer

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

Etymology of Hornfels and Gneiss

Along with Hornfels and Gneiss definition, know more about the etymology of Hornfels and Gneiss. Etymology of Hornfels and Gneiss gives information about origin and formation of a particular rock. Know more about Formation of Hornfels and Formation of Gneiss. The etymology of Hornfels is From German which means hornstone while that of Gneiss is From German which means hornstone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Hornfels and Gneiss belong to Metamorphic Rocks. The sub-class, group and other categories of Hornfels and Gneiss are listed below.

For Hornfels,

• Sub-class: Durable Rock and Soft Rock
• Group:
• Other Categories: Fine grained rock and Opaque rock

For Gneiss,

• Sub-class: Durable Rock and Hard Rock
• Group:
• Other Categories: Coarse grained rock, Medium grained rock and Opaque rock