Rapakivi Granite and Pseudotachylite Definition

Definition of Rapakivi Granite and Pseudotachylite

The general Rapakivi Granite and Pseudotachylite definition can be stated as: Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase. On the other hand, Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.. Along with definition of Rapakivi Granite and Pseudotachylite, get to know about Properties of Rapakivi Granite and Pseudotachylite. Get to know more information about Rapakivi Granite and Pseudotachylite origin and discoverer, etymology and class.

History of Rapakivi Granite and Pseudotachylite

The history of Rapakivi Granite and Pseudotachylite 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.

Rapakivi Granite and Pseudotachylite Origin and Discoverer

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

Etymology of Rapakivi Granite and Pseudotachylite

Along with Rapakivi Granite and Pseudotachylite definition, know more about the etymology of Rapakivi Granite and Pseudotachylite. Etymology of Rapakivi Granite and Pseudotachylite gives information about origin and formation of a particular rock. Know more about Formation of Rapakivi Granite and Formation of Pseudotachylite. The etymology of Rapakivi Granite is From Finnish Rapakivi which stands for crumbly rock while that of Pseudotachylite is From Finnish Rapakivi which stands for crumbly rock. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Rapakivi Granite belongs to Igneous Rocks while Pseudotachylite belongs to Metamorphic Rocks. The sub-class, group and other categories of Rapakivi Granite and Pseudotachylite are listed below.

For Rapakivi Granite,

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

For Pseudotachylite,

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