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Is volcanic glass an intrusive or extrusive igneous rock?
Volcanic glass is an extrusive igneous rock. It forms when molten lava cools quickly on the Earth's surface, preventing the formation of crystals.
What is an extrusive igneous rock that is actually glass?
Obsidian is an extrusive igneous rock that forms when lava cools quickly and solidifies into a glass-like material without crystal formation. It is typically black in color and has a smooth, glassy texture due to its rapid cooling process.
What type of extrusive rock can be easily mistaken for glass?
Obsidian is an extrusive rock formed from rapidly cooling lava with a glassy appearance that can easily be mistaken for actual glass due to its smooth texture and lack of crystal structure.
Is scoria metamorphic?
no, extrusive because it is made by lava not magma.
Is basalt the most common intrusive rock?
Yes, Basalt is the most common extrusive rock
Is obsidian extrusive rock?
No. Obsidian is volcanic glass. Glass is amorphous and thus noncrystalline.
Is volcanic glass an intrusive or extrusive igneous rock?
Volcanic glass is an extrusive igneous rock. It forms when molten lava cools quickly on the Earth's surface, preventing the formation of crystals.
What is an extrusive igneous rock that is actually glass?
Obsidian is an extrusive igneous rock that forms when lava cools quickly and solidifies into a glass-like material without crystal formation. It is typically black in color and has a smooth, glassy texture due to its rapid cooling process.
What is the obsidian rock type?
Obsidian is an extrusive felsic igneous rock.
Where is Obsidian?
Obsidian is a naturally occurring glass formed as an extrusive igneous rock
What type of extrusive rock can be easily mistaken for glass?
Obsidian is an extrusive rock formed from rapidly cooling lava with a glassy appearance that can easily be mistaken for actual glass due to its smooth texture and lack of crystal structure.
Is scoria metamorphic?
no, extrusive because it is made by lava not magma.
Is basalt the most common intrusive rock?
Yes, Basalt is the most common extrusive rock
Is Obsidian an extrusive rock or intrusive rock?
Yes it is extrusive love yall
What is category of igneous extrusive rock?
Some igneous extrusive rocks include obsidian, basalt, andesite, rhyolite, scoria, pumice, basaltic glass. If you want more, go to page 6 on the Earth Science Reference Tables at the related link.
Is pumice an extrusive rock?
Extrusive
Are basalt extrusive or intrusive?
Basaltic rock are true to be extrusive rock
