Extrusive Igneous Rocks
Extrusive igneous rocks, additionally referred to as volcanic rocks, are fashioned on the crust’s surface due to the partial melting of rocks within the mantle and crust. Extrusive Igneous Rocks are listed below.
Phonolite
Phonolite is a type of volcanic rock that belongs to the family of igneous rocks. It is characterized by its unique mineral composition and...
Pumice
Pumice is a volcanic rock that consists of highly vesicular rough textural rock glass. It generally light colored. It is created when gas-saturated liquid...
Obsidian
Obsidian is an igneous rock that forms when molten rock material cools so rapidly that atoms are unable to arrange themselves into a crystalline structure. It is an amorphous material known as a "mineraloid." The result is a volcanic glass with a smooth uniform texture that breaks with a conchoidal fracture .
Volcanic Bomb
Volcanic bomb is pyroclastic rock that is a cooling of a mass of lava it flies thorough the air after eruption. If it is...
Scoria
Scoria is a type of volcanic rock that forms from the solidification of molten lava. It is commonly found around and on the surface...
