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Rhyodacite
Rhyodacite

Comendite
Comendite



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Rhyodacite
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Comendite

Rhyodacite and Comendite Definition

1 Definition
1.1 Definition
Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite
1.2 History
1.2.1 Origin
USA
Italy
1.2.2 Discoverer
Unknown
Unknown
1.3 Etymology
Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite
Comendite derives its name from the area of Le Commende on San Pietro Island in Italy
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Volcanic
Volcanic
1.6 Other Categories
Fine Grained Rock, Opaque Rock
Medium Grained Rock, Opaque Rock

Definition of Rhyodacite and Comendite

The general Rhyodacite and Comendite definition can be stated as: Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite. On the other hand, Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite. Along with definition of Rhyodacite and Comendite, get to know about Properties of Rhyodacite and Comendite. Get to know more information about Rhyodacite and Comendite origin and discoverer, etymology and class.

History of Rhyodacite and Comendite

The history of Rhyodacite and Comendite 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 Comendite Origin and Discoverer

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

Etymology of Rhyodacite and Comendite

Along with Rhyodacite and Comendite definition, know more about the etymology of Rhyodacite and Comendite. Etymology of Rhyodacite and Comendite gives information about origin and formation of a particular rock. Know more about Formation of Rhyodacite and Formation of Comendite. 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 Comendite 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 Comendite belong to Igneous Rocks. The sub-class, group and other categories of Rhyodacite and Comendite are listed below.

For Rhyodacite,

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

For Comendite,

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