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Riya Sen posted an Question
October 16, 2021 • 22:12 pm 30 points
  • IIT JAM
  • Geology (GG)

72. among the following, which is not associated with pegmatite?

72. Among the following, which is not associated with pegmatite?

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    Mayank vedwal Vedwal Best Answer

    Pegmatite mostly contain large rare minerals(generally gemstones) which are rich in aluminum and silicon atoms, because these rocks are formed at the end stage of crystallization. Now here except biotite all the minerals are used as a gemstone and except biotite all other minerals are rich in aluminum and silicon so these all are found in pegmatite. So correct option is biotite.

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