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    • Columnar basalt rock columns, Organ Pipes near Mt Cargill, NZ.
    Rights: Peter MacMurchy Published 9 April 2010 Size: 210 KB Referencing Hub media

    Basalt is associated with great rock columns that are found in many places around the Earth, such as the Organ Pipes near Mt Cargill, Dunedin.

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      Volcanoes – timeline

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      2. ARTICLE

      Types of volcanic rock

      Rocks are not all the same. Some are heavy, some are light. Others are dark, while some can be almost pure white. Even igneous rocks that are all formed from magma in the Earth’s mantle can look ...

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