What is the cleavage of igneous rocks?

Igneous rocks typically do not exhibit cleavage like sedimentary or metamorphic rocks, as they are formed from the solidification of molten magma or lava. Instead, they may show fracturing or break along irregular surfaces due to their crystalline structure. The absence of cleavage is due to the random arrangement of minerals in igneous rocks, which contrasts with the layered or foliation patterns found in other rock types. Overall, their texture and structure are more influenced by cooling rates and mineral composition than by cleavage.