Fixes some colons

code/modules/mining/mine_turfs.dm

@@ -561,7 +561,8 @@ var/list/mining_overlay_cache = list()
 	else
 		X = new /obj/item/weapon/ore/strangerock(src, inside_item_type = F.find_type)
 		geologic_data.UpdateNearbyArtifactInfo(src)
-		X:geologic_data = geologic_data
+		var/obj/item/weapon/ore/strangerock/SR = X
+		SR.geologic_data = geologic_data
 
 	//some find types delete the /obj/item/weapon/archaeological_find and replace it with something else, this handles when that happens
 	//yuck

code/modules/xenoarcheaology/finds/find_spawning.dm

@@ -605,9 +605,9 @@
 			new_item.origin_tech[TECH_ARCANE] = 1
 			new_item.origin_tech[TECH_PRECURSOR] = 1
 
-		var/turf/T = get_turf(new_item)
-		if(istype(T, /turf/simulated/mineral))
-			T:last_find = new_item
+		var/turf/simulated/mineral/T = get_turf(new_item)
+		if(istype(T))
+			T.last_find = new_item
 
 		qdel(src)