magma
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A lava fountain on Kilauea Iki, Hawaii, USA. As magma reaches the earth's surface escaping gas sprays lava into the air.
Molten rock material that originates in the lower part of the Earth's crust, or mantle, where it reaches temperatures as high as 1,000°C/1,832°F. Igneous rocks are formed from magma. Lava is magma that has extruded onto the surface.
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