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Extrusive igneous rock is produced by the solidification of lava.
Common, hihgly porous types of volcanic rock are pumice and scoria.
igneous
volcanic activity
Siliceous volcanic glass is also known as obsidian.
igneous rocks
Extrusive igneous rock is produced by the solidification of lava.
volcanic rock from cape verde
Common, hihgly porous types of volcanic rock are pumice and scoria.
Volcanic.
volcanic rock , or even a type of rock in a classified section , sedimentary , metaphoric , or even igneous. the answer is volcanic rock a type of metaphoric rock. :)
Volcanic rock is extrusive igneous rock.
volcanic rock
a lava rock i think
Siliceous volcanic glass is also known as obsidian.
igneous
geothermal