mortain
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Example Sentences
Example:The walls of the volcano were made of basalt, a type of volcanic rock.
Definition:A common extrusive igneous dark rock formed from the rapid cooling of lava exposed to air or water.
From basalt
Example:The pumice sculptures were lightweight and easy to move around.
Definition:A very light, porous volcanic rock that is fragmented during a volcanic eruption and floats on water.
From pumice
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