Shale and Pegmatite Definition

Definition of Shale and Pegmatite

The general Shale and Pegmatite 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, Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. Along with definition of Shale and Pegmatite, get to know about Properties of Shale and Pegmatite. Get to know more information about Shale and Pegmatite origin and discoverer, etymology and class.

History of Shale and Pegmatite

The history of Shale and Pegmatite 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 Pegmatite Origin and Discoverer

Shale and Pegmatite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Shale and Pegmatite. In this section, you will know about Shale and Pegmatite Origin and Discoverer. Origin of Shale and Pegmatite are Unknown. It is interesting to know the name of Shale and Pegmatite discoverer. The Discoverer of Shale is Unknown and the discoverer of Pegmatite is R. J. Hauy.

Etymology of Shale and Pegmatite

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

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