Hornfels and Rapakivi Granite Definition

Definition of Hornfels and Rapakivi Granite

The general Hornfels and Rapakivi Granite 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, Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase. Along with definition of Hornfels and Rapakivi Granite, get to know about Properties of Hornfels and Rapakivi Granite. Get to know more information about Hornfels and Rapakivi Granite origin and discoverer, etymology and class.

History of Hornfels and Rapakivi Granite

The history of Hornfels and Rapakivi Granite 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 Rapakivi Granite Origin and Discoverer

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

Etymology of Hornfels and Rapakivi Granite

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

For Hornfels,

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

For Rapakivi Granite,

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