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Obsidian is an igneous rock.
So the answer is YES.
Beulah Skiles
Wiki User
∙ 12y agoObsidian is an igneous glass not a rock, that forms when lava cools so rapidly that atoms are unable to arrange themselves into a crystalline structure. The result is a volcanic glass with a smooth uniform texture that breaks with a conchoidal fracture.
As rocks are by definition made from minerals which in turn have to be crystalline, obsidian by definition can not be a rock.
Wiki User
∙ 13y agoObsidian is an igneous rock due to the nature in which it was formed. Obsidian is formed when lava from volcanoes is hurled high into the air, cools quickly upon falling and becomes the glassy rock known as obsidian.
Wiki User
∙ 11y agopaper and trees and lead and computers and partise and cake and ponies. oh and ice cream
Wiki User
∙ 14y agoNo. Obsidian is an extrusive igneous glass.
Wiki User
∙ 13y agoYes. It is formed from solidified lava that is smoothed by contacting water.
Wiki User
∙ 13y agono, it is an extrusive igneous rock.
Wiki User
∙ 12y agoNo, it is an extrusive igneous rock.
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What is the major difference between igneous and metamorphic rocks?
igneous rocks started as melted lava and cooled to be rocks. Metamorphic rock started as a sedimentary rock, and was heated up and put under pressure to create the metamorphic rock. Classic example - igneous = obsidian. Metamorphic = marble (marble is limestone that's been heated and squeezed a lot).
What is a glassy rock?
Obsidian is a naturally occurring volcanic form of glass.
What metamorphic rock does shale and granite turn into?
Shale turns into slate, granite into gneiss.
Is glass metamorphic?
Crystals are the form that minerals take upon solidification. Metamorphic is a term used to describe a rock that undergoes a chemical or mineral transformation from heat or pressure. New crystals can form in rock undergoing metamorphosis, but the crystals themselves are not considered metamorphic.
What kind of rock is formed with heat and pressure?
Metamorphic rocks, like slate or quartizite, or even diamonds.
Is obsidian metamorphic igneous or sedimentary?
Obsidian is an igneous rock.
Is obsidian rock metamorphic rock sedimentary or igneous?
Obsidian is an extrusive igneous rock, formed from rapidly cooling lava.
If you were a rock which rock would you be using your personality?
Metamorphic. Obsidian.
Is the metamorphic rock obsidian or pumice?
Neither. Both pumice and obsidian are igneous.
Why doesn't pumice or obsidian turn into a metamorphic rock?
Pumice and obsidian are both forms of volcanic glass, which weathers away fairly easily.
How obsidian rocks form?
They are formed when either a sedimentary rock or a metamorphic rock are exposed to high heat and turn into magma and then cool quickly.
What is the major difference between igneous and metamorphic rocks?
igneous rocks started as melted lava and cooled to be rocks. Metamorphic rock started as a sedimentary rock, and was heated up and put under pressure to create the metamorphic rock. Classic example - igneous = obsidian. Metamorphic = marble (marble is limestone that's been heated and squeezed a lot).
What is a glassy rock?
Obsidian is a naturally occurring volcanic form of glass.
What metamorphic rock does shale and granite turn into?
Shale turns into slate, granite into gneiss.
What does rock group does obsidian belong to?
Obsidian is in the Igneous rock group.
Is obsidian a sedimentary rock igneous rock or a metamorphic rock?
obsidian is an igneous rock, it is not formed from sediment, or a rock going under heat and pressure for the second time it is formed when a volcano erupts and it cools very quickly giving it a smooth glossy surface like glass.
Is glass metamorphic?
Crystals are the form that minerals take upon solidification. Metamorphic is a term used to describe a rock that undergoes a chemical or mineral transformation from heat or pressure. New crystals can form in rock undergoing metamorphosis, but the crystals themselves are not considered metamorphic.
