The following are the features of igneous rocks:
1. There is a lack of layers in igneous rocks.
2. These rocks are non-porous.
3. These rocks are crystallized.
4. Fossils are not found in these rocks.
5. These rocks are extremely hard.
6. The effect of physical weathering on these rocks is greater in amount compared to chemical weathering.
7. Metallic minerals are found in these rocks.