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Science
What is another name for volcanic rock?
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Three basic types of Volcanic Rock Basalt contains a lot of iron but not much silica. Andesite is lighter coloured than basalt because it contains less iron and more silica Rhyolite is light-coloured or white – this is a clue that the rock contains a lot of silica and not much iron or magnesium.
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. Pumice is another name for volcanic rock. It is produced when lava with a very high content of water and gas is discharged from a volcano.
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