Hornfels and Tonalite Definition

Definition of Hornfels and Tonalite

The general Hornfels and Tonalite 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, Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture. Along with definition of Hornfels and Tonalite, get to know about Properties of Hornfels and Tonalite. Get to know more information about Hornfels and Tonalite origin and discoverer, etymology and class.

History of Hornfels and Tonalite

The history of Hornfels and Tonalite 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 Tonalite Origin and Discoverer

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

Etymology of Hornfels and Tonalite

Along with Hornfels and Tonalite definition, know more about the etymology of Hornfels and Tonalite. Etymology of Hornfels and Tonalite gives information about origin and formation of a particular rock. Know more about Formation of Hornfels and Formation of Tonalite. The etymology of Hornfels is From German which means hornstone while that of Tonalite 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 belongs to Metamorphic Rocks while Tonalite belongs to Igneous Rocks. The sub-class, group and other categories of Hornfels and Tonalite are listed below.

For Hornfels,

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

For Tonalite,

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