diff --git a/code/modules/mining/equipment/resonator.dm b/code/modules/mining/equipment/resonator.dm
index d4762b8bb93..60c147041b2 100644
--- a/code/modules/mining/equipment/resonator.dm
+++ b/code/modules/mining/equipment/resonator.dm
@@ -138,7 +138,11 @@
 	new /obj/effect/temp_visual/resonance_crush(src_turf)
 	if(ismineralturf(src_turf))
 		var/turf/simulated/mineral/mineral_turf = src_turf
-		mineral_turf.gets_drilled(creator)
+		if(is_ancient_rock(mineral_turf))
+			failure_prob = 100 // rock too strong for resonance field
+			visible_message("<span class='notice'>This rock appears to be resistant to all mining tools except pickaxes!</span>")
+		else
+			mineral_turf.gets_drilled(creator)
 	check_pressure(src_turf)
 	playsound(src_turf, 'sound/weapons/resonator_blast.ogg', 50, TRUE)
 	for(var/mob/living/attacked_living in src_turf)
diff --git a/code/tests/attack_chain/test_attack_chain_turf.dm b/code/tests/attack_chain/test_attack_chain_turf.dm
index ee7e2aaca2e..76997511e4b 100644
--- a/code/tests/attack_chain/test_attack_chain_turf.dm
+++ b/code/tests/attack_chain/test_attack_chain_turf.dm
@@ -32,7 +32,7 @@
 	qdel(rpd)
 
 	var/obj/resonator = player.spawn_obj_in_hand(/obj/item/resonator)
-	var/turf/mineral_wall = player.change_turf_nearby(/turf/simulated/mineral/ancient)
+	var/turf/mineral_wall = player.change_turf_nearby(/turf/simulated/mineral)
 	player.click_on(mineral_wall)
 	sleep(3 SECONDS)
 	TEST_ASSERT(istype(get_turf(mineral_wall), /turf/simulated/floor/plating/asteroid), "Did not find mineral wall dug with resonator")