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Obsidian
Obsidian

Lherzolite
Lherzolite



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Lherzolite

Obsidian and Lherzolite Definition

1 Definition
1.1 Definition
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth
Lherzolite is a type of ultramafic igneous rock which contains essential olivine and clinopyroxene and orthopyroxene in equal proportions
1.2 History
1.2.1 Origin
Ethiopia
France
1.2.2 Discoverer
Obsius
Unknown
1.3 Etymology
From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius
From the Lherz Massif, an alpine peridotite complex, at Étang de Lers, near Massat in the French Pyrenees; Lherz is the archaic spelling of this location
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
Plutonic
1.6 Other Categories
Opaque Rock
Fine Grained Rock, Opaque Rock

Definition of Obsidian and Lherzolite

The general Obsidian and Lherzolite definition can be stated as: Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth. On the other hand, Lherzolite is a type of ultramafic igneous rock which contains essential olivine and clinopyroxene and orthopyroxene in equal proportions. Along with definition of Obsidian and Lherzolite, get to know about Properties of Obsidian and Lherzolite. Get to know more information about Obsidian and Lherzolite origin and discoverer, etymology and class.

History of Obsidian and Lherzolite

The history of Obsidian and Lherzolite 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.

Obsidian and Lherzolite Origin and Discoverer

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

Etymology of Obsidian and Lherzolite

Along with Obsidian and Lherzolite definition, know more about the etymology of Obsidian and Lherzolite. Etymology of Obsidian and Lherzolite gives information about origin and formation of a particular rock. Know more about Formation of Obsidian and Formation of Lherzolite. The etymology of Obsidian is From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius while that of Lherzolite is From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Obsidian and Lherzolite belong to Igneous Rocks. The sub-class, group and other categories of Obsidian and Lherzolite are listed below.

For Obsidian,

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

For Lherzolite,

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