Why are you talking about an element that you can't even spell?
Diorite sources have only been located in a number of places around the world and is considered to be a somewhat rare rock. On top of that, diorite is created within the Earths crust, not on the surface like many others.
And sure, there are minerals above 7, but I'm pretty sure no one's gonna find a fist sized topaz from walking around the yard and then try smashing a diamond with it.
My post was aimed at your average "stone" that you can find in every backyard around the world. Diorite and 'other minerals' have nothing to do with it.
Learn your stuff before trying to insult someone.