If two rocks cannot scratch each other, then they would have to be of equal hardness. A harder rock can always scratch a softer rock.
because there yellow!!!
Take the two and scratch them off of each other. Which ever is scratched is the crystal. Diamonds are always harder. You can also try to scratch it off of other things too, but the diamond will never scratch.
The rocks move past each other horizontally.
Yes, but all couples do that, whether they are lesbian or not.
When 2 probable answers cannot reach each other. They cannot be reached by each other and are not similar.
burial
beat each other with rocks
It is called Abrasion.
Burial
It can provide materials to make other rocks, also form other rocks and be changed by the force of the earth
they can
At areas of crustal plate collisions.