Shale and Hornfels Definition

Definition of Shale and Hornfels

The general Shale and Hornfels definition can be stated as: Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles. On the other hand, 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. Along with definition of Shale and Hornfels, get to know about Properties of Shale and Hornfels. Get to know more information about Shale and Hornfels origin and discoverer, etymology and class.

History of Shale and Hornfels

The history of Shale and Hornfels 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.

Shale and Hornfels Origin and Discoverer

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

Etymology of Shale and Hornfels

Along with Shale and Hornfels definition, know more about the etymology of Shale and Hornfels. Etymology of Shale and Hornfels gives information about origin and formation of a particular rock. Know more about Formation of Shale and Formation of Hornfels. The etymology of Shale is From German Schalstein laminated limestone, and Schalgebirge layer of stone in stratified rock. From Old English scealu in its base sense of- thing that divides or separate, while that of Hornfels is From German Schalstein laminated limestone, and Schalgebirge layer of stone in stratified rock. From Old English scealu in its base sense of- thing that divides or separate,. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Shale belongs to Sedimentary Rocks while Hornfels belongs to Metamorphic Rocks. The sub-class, group and other categories of Shale and Hornfels are listed below.

For Shale,

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

For Hornfels,

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