Phyllite and Shale Definition

Definition of Phyllite and Shale

The general Phyllite and Shale definition can be stated as: Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks. 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 Phyllite and Shale, get to know about Properties of Phyllite and Shale. Get to know more information about Phyllite and Shale origin and discoverer, etymology and class.

History of Phyllite and Shale

The history of Phyllite 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.

Phyllite and Shale Origin and Discoverer

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

Etymology of Phyllite and Shale

Along with Phyllite and Shale definition, know more about the etymology of Phyllite and Shale. Etymology of Phyllite and Shale gives information about origin and formation of a particular rock. Know more about Formation of Phyllite and Formation of Shale. The etymology of Phyllite is From Greek phullon leaf + -ite1 while that of Shale is From Greek phullon leaf + -ite1. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Phyllite belongs to Metamorphic Rocks while Shale belongs to Sedimentary Rocks. The sub-class, group and other categories of Phyllite and Shale are listed below.

For Phyllite,

• Sub-class: Durable Rock and Soft Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock

For Shale,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock