Gabbro is a rock found in mid-ocean ridges or ancient mountains.
What is a feature of a rock such as Gabbro a rock but not a mineral?
Responses
It does not have a fixed chemical composition.
It does not have a fixed chemical composition.,
It has a distinct crystal lattice structure.
It has a distinct crystal lattice structure.,
It comes in many colors.
It comes in many colors.,
It has a consistent chemical composition.