Anukruti posted an MCQ
January 17, 2021 • 03:40 am 30 points
  • IIT JAM
  • Geology (GG)

Which is not associated with pegmatite?

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    Saurabh 1 best-answer

    It has to be Kyanite. As it is a major metamorphic mineral dominating in high pressure metamorphic terrane. While all others are related to Pegmatite deposits. Pegmatite is most probably a coarse grained igneous rock having composition resembling that of granitic composition. They form from the waters(probably hydrothermal fluid) that separate from a magma in the late stages of crystallization

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    Rahul kumar best-answer

    Most probable answer to this question should be Kyanite because Kyanite is generally considered to be a product of metamorphism. However, recent researches have revealed that all of the above minerals (including Kyanite) can be found in Pegmatite.

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    Sajan sarthak Best Answer

    Pegmatites are sources of valuable minerals such as spodumene (an ore of lithium) and beryl (an ore of beryllium) that are rarely found in economic amounts in other types of rocks. They also can be a source of gemstones. Some of the world’s best tourmaline, aquamarine, and topaz deposits have been found in pegmatites... KYANITE IS. A METAMORPHIC ROCK MINERAL NOT FOUND IN PEGMATITE.

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