Trachyte and Pegmatite Definition

Definition of Trachyte and Pegmatite

The general Trachyte and Pegmatite definition can be stated as: Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar. On the other hand, Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. Along with definition of Trachyte and Pegmatite, get to know about Properties of Trachyte and Pegmatite. Get to know more information about Trachyte and Pegmatite origin and discoverer, etymology and class.

History of Trachyte and Pegmatite

The history of Trachyte 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.

Trachyte and Pegmatite Origin and Discoverer

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

Etymology of Trachyte and Pegmatite

Along with Trachyte and Pegmatite definition, know more about the etymology of Trachyte and Pegmatite. Etymology of Trachyte and Pegmatite gives information about origin and formation of a particular rock. Know more about Formation of Trachyte and Formation of Pegmatite. The etymology of Trachyte is From Greek trakhus rough’ or trakhutēs roughness while that of Pegmatite is From Greek trakhus rough’ or trakhutēs roughness. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Trachyte and Pegmatite belong to Igneous Rocks. The sub-class, group and other categories of Trachyte and Pegmatite are listed below.

For Trachyte,

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

For Pegmatite,

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