A couple of them are obsidian and pumice.
THEY ARE CALLED EXTRUSIVE IGNEOUS ROCKS...........
THEY ARE SO CALLED BECAUSE THEY ARE FORMED FROM THE LAVA
THAT HAS BEEN COOLED........
Extrusive igneous rock such as basalt, rhyolite, pumice, and obsidian.
Igneous rock forms from the lava of an erupting volcano. This rock is created when molten rock cools and solidifies, either on the surface (extrusive igneous rock) or beneath the Earth's surface (intrusive igneous rock). Examples of igneous rocks include basalt, rhyolite, and granite.
Volcanoes produce extrusive igneous rock.
Mafic igneous rock. ( due to Ferromagnesian minerals).
Such rock is extrusive igneous rock.
Extrusive igneous rock such as basalt, rhyolite, pumice, and obsidian.
Igneous rock forms from the lava of an erupting volcano. This rock is created when molten rock cools and solidifies, either on the surface (extrusive igneous rock) or beneath the Earth's surface (intrusive igneous rock). Examples of igneous rocks include basalt, rhyolite, and granite.
igneous
All volcanoes produce igneous rocks.
extrusive igneous rock
Either a type of lava called AA (ah-ah) comes out of the volcano of a type of lava called pahoho comes out.An Extrusive Igneous Rock.
Volcanoes produce extrusive igneous rock.
a shield volcano
IT IS A Sheild volcano
Mafic igneous rock. ( due to Ferromagnesian minerals).
Such rock is extrusive igneous rock.
Extrusive igneous rock.