Phyllite and Pegmatite Definition

Definition of Phyllite and Pegmatite

The general Phyllite and Pegmatite 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, Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. Along with definition of Phyllite and Pegmatite, get to know about Properties of Phyllite and Pegmatite. Get to know more information about Phyllite and Pegmatite origin and discoverer, etymology and class.

History of Phyllite and Pegmatite

The history of Phyllite and Pegmatite 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 Pegmatite Origin and Discoverer

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

Etymology of Phyllite and Pegmatite

Along with Phyllite and Pegmatite definition, know more about the etymology of Phyllite and Pegmatite. Etymology of Phyllite and Pegmatite gives information about origin and formation of a particular rock. Know more about Formation of Phyllite and Formation of Pegmatite. The etymology of Phyllite is From Greek phullon leaf + -ite1 while that of Pegmatite 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 Pegmatite belongs to Igneous Rocks. The sub-class, group and other categories of Phyllite and Pegmatite 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 Pegmatite,

• Sub-class: Durable Rock and Hard Rock
• Group: Plutonic
• Other Categories: Coarse grained rock and Opaque rock