Shale and Rapakivi Granite Definition

Definition of Shale and Rapakivi Granite

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

History of Shale and Rapakivi Granite

The history of Shale 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.

Shale and Rapakivi Granite Origin and Discoverer

Shale 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 Shale and Rapakivi Granite. In this section, you will know about Shale and Rapakivi Granite Origin and Discoverer. Origin of Shale is Unknown whereas Origin of Rapakivi Granite is Finland, Europe. It is interesting to know the name of Shale and Rapakivi Granite discoverer. The Discoverer of Shale is Unknown and the discoverer of Rapakivi Granite is Jakob Sederholm.

Etymology of Shale and Rapakivi Granite

Along with Shale and Rapakivi Granite definition, know more about the etymology of Shale and Rapakivi Granite. Etymology of Shale and Rapakivi Granite gives information about origin and formation of a particular rock. Know more about Formation of Shale and Formation of Rapakivi Granite. 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 Rapakivi Granite 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 Rapakivi Granite belongs to Igneous Rocks. The sub-class, group and other categories of Shale and Rapakivi Granite are listed below.

For Shale,

• Sub-class: Durable Rock and Medium Hardness 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