Fixes most of #6300

code/modules/mining/mine_turfs.dm

@@ -28,8 +28,6 @@
 
 /turf/simulated/mineral/New()
 
-	. = ..()
-
 	MineralSpread()
 
 	spawn(2)
@@ -260,8 +258,23 @@
 					M.Stun(5)
 			M.apply_effect(25, IRRADIATE)
 
+
+	var/list/step_overlays = list("n" = NORTH, "s" = SOUTH, "e" = EAST, "w" = WEST)
+
+	//Add some rubble,  you did just clear out a big chunk of rock.
 	var/turf/simulated/floor/plating/airless/asteroid/N = ChangeTurf(/turf/simulated/floor/plating/airless/asteroid)
-	for(var/i=0;i<rand(5);i++) N.overlay_detail = "asteroid[rand(0,9)]" //Add some rubble,  you did just clear out a big chunk of rock.
+	N.overlay_detail = "asteroid[rand(0,9)]"
+
+	// Kill and update the space overlays around us.
+	for(var/direction in step_overlays)
+		var/turf/space/T = get_step(src, step_overlays[direction])
+		if(istype(T))
+			T.overlays.Cut()
+			for(var/next_direction in step_overlays)
+				if(istype(get_step(T, step_overlays[next_direction]),/turf/simulated/mineral))
+					T.overlays += image('icons/turf/walls.dmi', "rock_side_[next_direction]")
+
+	// Update the
 	N.updateMineralOverlays(1)
 
 	if(rand(1,500) == 1)
@@ -363,7 +376,7 @@
 
 
 /turf/simulated/floor/plating/airless/asteroid //floor piece
-	name = "Asteroid"
+	name = "asteroid"
 	icon = 'icons/turf/floors.dmi'
 	icon_state = "asteroid"
 	oxygen = 0.01
@@ -376,8 +389,6 @@
 
 /turf/simulated/floor/plating/airless/asteroid/New()
 
-	. = ..()
-
 	if(prob(20))
 		overlay_detail = "asteroid[rand(0,9)]"
 
@@ -459,8 +470,8 @@
 
 /turf/simulated/floor/plating/airless/asteroid/proc/updateMineralOverlays(var/update_neighbors)
 
-	spawn(2)
 	overlays.Cut()
+
 	var/list/step_overlays = list("n" = NORTH, "s" = SOUTH, "e" = EAST, "w" = WEST)
 	for(var/direction in step_overlays)