Argillite and Picrite Definition

Definition of Argillite and Picrite

The general Argillite and Picrite definition can be stated as: Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate. 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 Argillite and Picrite, get to know about Properties of Argillite and Picrite. Get to know more information about Argillite and Picrite origin and discoverer, etymology and class.

History of Argillite and Picrite

The history of Argillite 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.

Argillite and Picrite Origin and Discoverer

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

Etymology of Argillite and Picrite

Along with Argillite and Picrite definition, know more about the etymology of Argillite and Picrite. Etymology of Argillite and Picrite gives information about origin and formation of a particular rock. Know more about Formation of Argillite and Formation of Picrite. The etymology of Argillite is From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite while that of Picrite is From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Argillite belongs to Sedimentary Rocks while Picrite belongs to Igneous Rocks. The sub-class, group and other categories of Argillite and Picrite are listed below.

For Argillite,

• Sub-class: Durable Rock and Soft 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