Shale and Picrite Definition

Definition of Shale and Picrite

The general Shale and Picrite 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, Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine. Along with definition of Shale and Picrite, get to know about Properties of Shale and Picrite. Get to know more information about Shale and Picrite origin and discoverer, etymology and class.

History of Shale and Picrite

The history of Shale and Picrite 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 Picrite Origin and Discoverer

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

Etymology of Shale and Picrite

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

For Shale,

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

For Picrite,

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