Self colliding particle

Hello I woul like to know it it is possible to make self colliding particle like spawning rocks to create various stacks of them.?

cant find how

Thanks

You will have to use rigid bodies for non intersecting objects.
You can use a script/addon to convert particles to rigid bodies, see https://blenderartists.org/forum/showthread.php?279329-Copy-Particles-to-Rigid-Bodies

thankyou I’ll give it a try