Picrite and Shale Definition

Definition of Picrite and Shale

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

History of Picrite and Shale

The history of Picrite and Shale 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.

Picrite and Shale Origin and Discoverer

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

Etymology of Picrite and Shale

Along with Picrite and Shale definition, know more about the etymology of Picrite and Shale. Etymology of Picrite and Shale gives information about origin and formation of a particular rock. Know more about Formation of Picrite and Formation of Shale. The etymology of Picrite is From Greek pikros bitter + -ite, 19th century while that of Shale is From Greek pikros bitter + -ite, 19th century. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Picrite belongs to Igneous Rocks while Shale belongs to Sedimentary Rocks. The sub-class, group and other categories of Picrite and Shale are listed below.

For Picrite,

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

For Shale,

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