Obsidian and Shoshonite Definition

Obsidian

Shoshonite

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Definition

Origin

Discoverer

Etymology

Class

Sub-Class

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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

Ethiopia

Obsius

From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius

Igneous Rocks

Durable Rock, Medium Hardness Rock

Volcanic

Opaque Rock

Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass

Wyoming,USA

Iddings

From the place of origin called Shoshone riverin Wyoming

Igneous Rocks

Durable Rock, Medium Hardness Rock

Volcanic

Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock

Definition of Obsidian and Shoshonite

The general Obsidian and Shoshonite definition can be stated as: . On the other hand, . Along with definition of Obsidian and Shoshonite, get to know about Obsidian vs Shoshonite. Get to know more information about Obsidian and Shoshonite origin and discoverer, etymology and class.

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History of Obsidian and Shoshonite

The history of Obsidian and Shoshonite 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 Shoshonite Origin and Discoverer

Obsidian and Shoshonite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Obsidian vs Shoshonite. In this section, you will know about Obsidian and Shoshonite Origin and Discoverer. Origin of Obsidian and Shoshonite are . It is interesting to know the name of Obsidian and Shoshonite discoverer. The discoverer of Obsidian and Shoshonite are .

Etymology of Obsidian and Shoshonite

Along with Obsidian and Shoshonite definition, know more about the etymology of Obsidian and Shoshonite. Etymology of Obsidian and Shoshonite gives information about origin and formation of a particular rock. Know more about Formation of Obsidian and Formation of Shoshonite. The etymology of Obsidian is while that of Shoshonite is . The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Obsidian and Shoshonite belong to . The sub-class, group and other categories of Obsidian and Shoshonite are listed below.

For Obsidian,