anchor.diff:  	item_state = "tile-silver"
   	turf_type = /turf/open/floor/mineral/silver
   	mineralType = "silver"
  -	materials = list(/datum/material/silver=500)
  +	materials = list(MAT_SILVER=500)
   
   /obj/item/stack/tile/mineral/diamond
   	name = "diamond tile"
  
positive.code: 	item_state = "tile-plasma"
  	turf_type = /turf/open/floor/mineral/plasma
  	mineralType = "plasma"
  	materials = list(/datum/material/plasma=500)
  
  /obj/item/stack/tile/mineral/uranium
  	name = "uranium tile"
  
negative.code: 	item_state = "tile-shuttle"
  	turf_type = /turf/open/floor/mineral/titanium
  	mineralType = "titanium"
  	materials = list(MAT_TITANIUM=500)
  
  /obj/item/stack/tile/mineral/plastitanium
  	name = "plastitanium tile"
  