science
Grade-4-
Easy
Question
Which of the following is an intrusive igneous rock?
- Gneiss
- Pegmatite
- Marble
- None of these
Hint:
Pegmatite is an igneous rock.
The correct answer is: Pegmatite
- Pegmatite is an intrusive igneous rock formed by the cooling and crystallization of molten rock.
- It has the same silicic composition as that of granite.
- It has large crystals which are interlocking and a coarse texture.
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