Formation of Obsidian

Obsidian

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Formation

When the lava is released from volcano, it undergoes a very rapid cooling which freezes the mechanisms of crystallization. The result is a volcanic glass with a uniform smooth texture.

Composition

Mineral Content

Compound Content

Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

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97% - Igneous Rocks Rocks have it !

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Weathering

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99% - Igneous Rocks Rocks have it !

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

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92% - Igneous Rocks Rocks have it !

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Igneous Rocks » More

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Obsidian Formation

Obsidian formation took place millions of years ago. There are a variety of Obsidian Uses and the Obsidian Reserves are found in many countries around the world. The rocks in the earth’s crust continuously undergo changes in their composition which leads to formation of other rocks. Each rock has a unique formation process. Formation of Obsidian is explained below:

When the lava is released from volcano, it undergoes a very rapid cooling which freezes the mechanisms of crystallization. The result is a volcanic glass with a uniform smooth texture.

Along with Obsidian Formation, also learn about Obsidian composition and transformation in the next section.