Texture is a very important characteristic in identifying igneous rocks. Answer the following questions to help you become more familiar with igneous rock textures

1) What term is used to describe a fine grained texture that formed from rapid cooling?

2) Would a rock that exhibits this fine grained texture be extrusive or intrusive?

3) What term is used to describe a course grained texture that formed from slow cooling?

4) Would a rock that exhibits this course grained texture be extrusive or intrusive?

5) What term is used to describe a rock that has both a fine and course grained texture?

6) How is a rock that contains both fine and course grained textures formed?