Slate and Picrite Definition

Definition of Slate and Picrite

The general Slate and Picrite definition can be stated as: Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. 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 Slate and Picrite, get to know about Properties of Slate and Picrite. Get to know more information about Slate and Picrite origin and discoverer, etymology and class.

History of Slate and Picrite

The history of Slate 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.

Slate and Picrite Origin and Discoverer

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

Etymology of Slate and Picrite

Along with Slate and Picrite definition, know more about the etymology of Slate and Picrite. Etymology of Slate and Picrite gives information about origin and formation of a particular rock. Know more about Formation of Slate and Formation of Picrite. The etymology of Slate is From Old French esclate, from esclat (French éclat) while that of Picrite is From Old French esclate, from esclat (French éclat). The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Slate belongs to Metamorphic Rocks while Picrite belongs to Igneous Rocks. The sub-class, group and other categories of Slate and Picrite are listed below.

For Slate,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• 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