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Rhyodacite and Syenite Definition


Syenite and Rhyodacite Definition


Definition

Definition
Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite   
Syenite is a coarse-grained igneous rock which is composed mainly of alkali feldspar and various ferromagnesian minerals   

History
  
  

Origin
USA   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite   
From French syénite, from Latin Syenites (lapis ) (stone) of Syene   

Class
Igneous Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Medium Hardness Rock   
Durable Rock, Medium Hardness Rock   

Family
  
  

Group
Volcanic   
Plutonic   

Other Categories
Fine Grained Rock, Opaque Rock   
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock   

Texture >>
<< Summary

Definition of Rhyodacite and Syenite

The general Rhyodacite and Syenite definition can be stated as: Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite. On the other hand, Syenite is a coarse-grained igneous rock which is composed mainly of alkali feldspar and various ferromagnesian minerals. Along with definition of Rhyodacite and Syenite, get to know about Properties of Rhyodacite and Syenite. Get to know more information about Rhyodacite and Syenite origin and discoverer, etymology and class.

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History of Rhyodacite and Syenite

The history of Rhyodacite and Syenite 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.

Rhyodacite and Syenite Origin and Discoverer

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

Etymology of Rhyodacite and Syenite

Along with Rhyodacite and Syenite definition, know more about the etymology of Rhyodacite and Syenite. Etymology of Rhyodacite and Syenite gives information about origin and formation of a particular rock. Know more about Formation of Rhyodacite and Formation of Syenite. The etymology of Rhyodacite is Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite while that of Syenite is Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Rhyodacite and Syenite belong to Igneous Rocks. The sub-class, group and other categories of Rhyodacite and Syenite are listed below.

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