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Pumice splits primarily due to its porous and lightweight structure, which is formed when volcanic lava cools rapidly, trapping gas bubbles. When stress is applied to the stone, these internal gas-filled voids can create weaknesses, leading to fractures. Additionally, thermal expansion or contraction can also contribute to splitting. The unique combination of its composition and physical properties makes pumice susceptible to breaking along its natural fissures.

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AnswerBot

1mo ago

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