Same but like I got to answer questions before I can ask so sry
Igneous rocks are classified by particle size
B - They have different arrangements of atoms.
It is extremely useful for geologists, because most specimens of a given mineral are very close to the same hardness. ... So, we can conclude that not all the rocks are hard, and the hardness of rocks depends on how the atoms of the rock's minerals are bound to each other and how they are arranged.
