Is it possible for granite to transform into an igneous rock?

Answer 1

Granite already is an igenous rock, but it can melt and then re-solidify to form an igenous rock again. The new rock might not necessarily be granite, either if the melted granite erupts from a volcano or mixes with magma of a different composition.

Answer 2

Granite is already an igneous rock, formed from the solidification of molten magma deep within the Earth's crust. It cannot transform into another type of igneous rock but can be subjected to metamorphism to form a different type of rock, such as gneiss.