clay- can be found in almost all the mines but best place is in crafting guild***note you need level 40 crafting to get in the guild***, other than that you can get clay from southwest varrock mines

copper and tin- can usually be found near each other and can be found in almost all the mines in rs

blurite- only one place in rs for non mems: south of port sarim go under ground and go north than take the first  turn to the east and go straight. ***recomemded you hav lv 60 combat or up because the level 57 ice warriors will attack you, unless you can find a way to aviod them