Hi Dan, hi Jamie, my name is Don(Donny) & I've been addicted to silica rocks for 8 yrs. To make it worst I've gotten my kids addicted as well. My wife managed to save my 14 yr old but my 9yr old & my 7 yr old are addicts as well. We cant even go to a steak house without walking through its rock garden.Thankfully no body has said anything to the crazy man & his kids picking up rocks from it.