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Question
Pumice stone with a vesicular texture that is often used for scrubbing purpose belongs to which category of rocks?
Options
Igneous
Sedimentary
Metamorphic
None of them
MCQ
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Solution
Igneous
Explanation:
Pumice stone is an extrusive igneous rock with a vesicular (bubbly) texture formed when gas bubbles are trapped during rapid cooling of lava. It is lightweight and abrasive, making it suitable for scrubbing purposes.
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