Igneous Rocks Flashcards
1
Q
What are igneous rocks characterized by?
A
Hardness and durability
2
Q
What is a key feature of the crystal structure in igneous rocks?
A
No gaps between the crystals
3
Q
Are igneous rocks porous?
A
No
4
Q
What determines the size of the crystals in igneous rocks?
A
The cooling time of the rocks
