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29 September, 05:37

Basalt is an igneous rock that can be identified by its small crystals. What are they composed of?

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Answers (2)
  1. 29 September, 06:56
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    It is mostly composed of plagioclase and pyroxene minerals
  2. 29 September, 08:16
    0
    Pyroxene and calcium-rich plagioclase feldspar

    Explanation:

    Basalt is a dark-colored basic igneous rock that is formed due to the cooling and crystallization of magma at the seafloor. It has a silica content of less than 45%. It is denser than the other rocks. It is comprised of finer crystals, which forms because of their faster rate of cooling. These crystals are made up of pyroxene and plagioclase feldspar (calcium-rich). This rock is mainly found in the mid-oceanic ridges and near and around the volcanoes.
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