The actual rock depends on what type of eruption you're talking about. The general classification would be igneous rock. Here are some specific examples:
Extrusive rocks are produced from volcanic eruptions.
Igneous rocks form from volcanic eruptions, such as basalt and pumice.
Volcanoes produce extrusive igneous rocks.
Detrital!!
there's many diffident kinds.
Earthquakes and volcanic eruptions because they can both form mountains.
Those that are rich in iron and magnesium.
volcanic bombs
because of kurapika and gon w/ lerio and hisoka
Clastic sedimentary rocks.
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Igneous Rocks: Basalt and Granite
Earthquakes and volcanic eruptions because they can both form mountains.
Metamorphic, along with volcanic and plutonic igneous rocks.
Volcanic activity produces extrusive igneous rock.
A mixture of volcanic and sedimentary rocks -AlanKeo
Those that are rich in iron and magnesium.
volcanic bombs
Japan experiences typhoons, earthquakes, tsunamis, volcanic eruptions, floods, and occasional tornadoes.
Yes, there is early warning before most volcanic eruptions. The primary sign is small earthquakes or land tremors and shakes near the volcano.
volcanic rocks,water,dirt and hot tempatures
Clastic sedimentary rocks.