Trachyte and Rapakivi Granite Definition

Definition of Trachyte and Rapakivi Granite

The general Trachyte and Rapakivi Granite definition can be stated as: Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar. On the other hand, Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase. Along with definition of Trachyte and Rapakivi Granite, get to know about Properties of Trachyte and Rapakivi Granite. Get to know more information about Trachyte and Rapakivi Granite origin and discoverer, etymology and class.

History of Trachyte and Rapakivi Granite

The history of Trachyte and Rapakivi Granite 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 Rapakivi Granite Origin and Discoverer

Trachyte and Rapakivi Granite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Trachyte and Rapakivi Granite. In this section, you will know about Trachyte and Rapakivi Granite Origin and Discoverer. Origin of Trachyte is Unknown whereas Origin of Rapakivi Granite is Finland, Europe. It is interesting to know the name of Trachyte and Rapakivi Granite discoverer. The Discoverer of Trachyte is Alexandre Brongniart and René Just Haüy and the discoverer of Rapakivi Granite is Jakob Sederholm.

Etymology of Trachyte and Rapakivi Granite

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

For Trachyte,

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

For Rapakivi Granite,

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