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Igneous rocks, What is it made of?, Made of silica rich minerals such as…
Igneous rocks
BASALT
appearance
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dull colour, fine grained and smooth, with very very small crystals
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Formation
- through folding at convergent boundaries
- through subduction at convergent boundaries
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Made of silica rich minerals such as quartz, feldspar and mica which forms its multicoloured appearance.
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