diff --git a/baystation12.dme b/baystation12.dme
index 87a6be7b3a3..8fcfc748ea1 100644
--- a/baystation12.dme
+++ b/baystation12.dme
@@ -5,50 +5,6 @@
 // END_INTERNALS
 // BEGIN_FILE_DIR
 #define FILE_DIR .
-#define FILE_DIR "code"
-#define FILE_DIR "code/TriDimension"
-#define FILE_DIR "code/WorkInProgress"
-#define FILE_DIR "code/WorkInProgress/Cael_Aislinn"
-#define FILE_DIR "code/WorkInProgress/Cael_Aislinn/Jungle"
-#define FILE_DIR "code/WorkInProgress/Cael_Aislinn/Rust"
-#define FILE_DIR "code/WorkInProgress/Cael_Aislinn/Supermatter"
-#define FILE_DIR "code/WorkInProgress/Susan"
-#define FILE_DIR "html"
-#define FILE_DIR "icons"
-#define FILE_DIR "icons/48x48"
-#define FILE_DIR "icons/effects"
-#define FILE_DIR "icons/mecha"
-#define FILE_DIR "icons/misc"
-#define FILE_DIR "icons/mob"
-#define FILE_DIR "icons/mob/human_races"
-#define FILE_DIR "icons/obj"
-#define FILE_DIR "icons/obj/assemblies"
-#define FILE_DIR "icons/obj/atmospherics"
-#define FILE_DIR "icons/obj/clothing"
-#define FILE_DIR "icons/obj/doors"
-#define FILE_DIR "icons/obj/flora"
-#define FILE_DIR "icons/obj/machines"
-#define FILE_DIR "icons/obj/pipes"
-#define FILE_DIR "icons/pda_icons"
-#define FILE_DIR "icons/spideros_icons"
-#define FILE_DIR "icons/Testing"
-#define FILE_DIR "icons/turf"
-#define FILE_DIR "icons/vending_icons"
-#define FILE_DIR "sound"
-#define FILE_DIR "sound/AI"
-#define FILE_DIR "sound/ambience"
-#define FILE_DIR "sound/effects"
-#define FILE_DIR "sound/effects/wind"
-#define FILE_DIR "sound/hallucinations"
-#define FILE_DIR "sound/items"
-#define FILE_DIR "sound/machines"
-#define FILE_DIR "sound/mecha"
-#define FILE_DIR "sound/misc"
-#define FILE_DIR "sound/music"
-#define FILE_DIR "sound/piano"
-#define FILE_DIR "sound/violin"
-#define FILE_DIR "sound/voice"
-#define FILE_DIR "sound/weapons"
 // END_FILE_DIR
 
 // BEGIN_PREFERENCES
@@ -1142,13 +1098,13 @@
 #include "code\modules\research\xenoarchaeology\finds\finds_fossils.dm"
 #include "code\modules\research\xenoarchaeology\finds\finds_misc.dm"
 #include "code\modules\research\xenoarchaeology\finds\finds_talkingitem.dm"
-#include "code\modules\research\xenoarchaeology\tools\bunsen_burner.dm"
 #include "code\modules\research\xenoarchaeology\tools\anomaly_suit.dm"
+#include "code\modules\research\xenoarchaeology\tools\bunsen_burner.dm"
 #include "code\modules\research\xenoarchaeology\tools\tools.dm"
 #include "code\modules\research\xenoarchaeology\tools\tools_coresampler.dm"
 #include "code\modules\research\xenoarchaeology\tools\tools_depthscanner.dm"
-#include "code\modules\research\xenoarchaeology\tools\tools_pickaxe.dm"
 #include "code\modules\research\xenoarchaeology\tools\tools_locater.dm"
+#include "code\modules\research\xenoarchaeology\tools\tools_pickaxe.dm"
 #include "code\modules\research\xenoarchaeology\unknown\unknown.dm"
 #include "code\modules\research\xenoarchaeology\unknown\unknown_analysis.dm"
 #include "code\modules\research\xenoarchaeology\unknown\unknown_db.dm"
diff --git a/code/game/objects/items/weapons/kitchen.dm b/code/game/objects/items/weapons/kitchen.dm
index 02f270d767d..c21601d0230 100644
--- a/code/game/objects/items/weapons/kitchen.dm
+++ b/code/game/objects/items/weapons/kitchen.dm
@@ -34,7 +34,7 @@
 /*
  * Spoons
  */
- /obj/item/weapon/kitchen/utensil/spoon
+/obj/item/weapon/kitchen/utensil/spoon
 	name = "spoon"
 	desc = "SPOON!"
 	icon_state = "spoon"
diff --git a/code/modules/mining/mine_turfs.dm b/code/modules/mining/mine_turfs.dm
index f4ad059a428..40319b0d1a7 100644
--- a/code/modules/mining/mine_turfs.dm
+++ b/code/modules/mining/mine_turfs.dm
@@ -128,6 +128,8 @@
 			//dont create artifact machinery in animal or plant digsites, or if we already have one
 			if(!artifact_find && digsite != 1 && digsite != 2 && prob(ARTIFACT_SPAWN_CHANCE))
 				artifact_find = new()
+				//world << "<b>[artifact_find.artifact_find_type]</b> [src.x], [src.y], [src.z]"
+				artifact_spawning_turfs.Add(src)
 
 		if(!src.geological_data)
 			src.geological_data = new/datum/geosample(src)
diff --git a/code/modules/research/xenoarchaeology/finds/finds.dm b/code/modules/research/xenoarchaeology/finds/finds.dm
index a31ec91852b..61b6fec727c 100644
--- a/code/modules/research/xenoarchaeology/finds/finds.dm
+++ b/code/modules/research/xenoarchaeology/finds/finds.dm
@@ -87,7 +87,7 @@
 	if(new_item_type)
 		find_type = new_item_type
 	else
-		find_type = get_random_find_type(0)
+		find_type = rand(1,34)	//update this when you add new find types
 
 	var/item_type = "object"
 	icon_state = "unknown[rand(1,4)]"
@@ -97,6 +97,7 @@
 	var/apply_material_decorations = 1
 	var/apply_image_decorations = 0
 	var/material_descriptor = ""
+	var/apply_prefix = 1
 	if(prob(40))
 		material_descriptor = pick("rusted ","dusty ","archaic ","fragile ")
 	source_material = pick("cordite","quadrinium","steel","titanium","aluminium","ferritic-alloy","plasteel","duranium")
@@ -116,7 +117,7 @@
 			new_item.icon_state = "bowl"
 			apply_image_decorations = 1
 			if(prob(20))
-				additional_desc = "There appear to be [pick("dark","faintly glowing","pungent")] [pick("red","purple","green","blue")] stains inside."
+				additional_desc = "There appear to be [pick("dark","faintly glowing","pungent","bright")] [pick("red","purple","green","blue")] stains inside."
 		if(2)
 			item_type = "urn"
 			new_item = new /obj/item/weapon/reagent_containers/glass(src.loc)
@@ -167,20 +168,22 @@
 				chance += 10
 
 			item_type = new_item.name
+			apply_prefix = 0
 			apply_material_decorations = 0
 			apply_image_decorations = 1
 		if(8)
-			item_type = "chained loops"
+			item_type = "handcuffs"
 			new_item = new /obj/item/weapon/handcuffs(src.loc)
 			additional_desc = "[pick("They appear to be for securing two things together","Looks kinky","Doesn't seem like a children's toy")]."
 		if(9)
 			item_type = "[pick("wicked","evil","byzantine","dangerous")] looking [pick("device","contraption","thing","trap")]"
+			apply_prefix = 0
 			new_item = new /obj/item/weapon/legcuffs/beartrap(src.loc)
 			additional_desc = "[pick("It looks like it could take a limb off",\
 			"Could be some kind of animal trap",\
 			"There appear to be [pick("dark red","dark purple","dark green","dark blue")] stains along part of it")]."
 		if(10)
-			item_type = "small [pick("cylinder","tank","chamber")]"
+			item_type = "[pick("cylinder","tank","chamber")]"
 			new_item = new /obj/item/weapon/lighter(src.loc)
 			additional_desc = "There is a tiny device attached."
 			if(prob(30))
@@ -203,7 +206,7 @@
 			icon_state = pick("oxygen","oxygen_fr","oxygen_f","plasma","anesthetic")
 			additional_desc = "It [pick("gloops","sloshes")] slightly when you shake it."
 		if(13)
-			item_type = "strange tool"
+			item_type = "tool"
 			if(prob(25))
 				new_item = new /obj/item/weapon/wrench(src.loc)
 			else if(prob(25))
@@ -239,12 +242,16 @@
 			if(prob(30))
 				apply_image_decorations = 1
 		if(16)
-			if(prob(33))
+			apply_prefix = 0
+			if(prob(25))
 				item_type = "smooth green crystal"
 				icon_state = "Green lump"
-			else if(prob(50))
+			else if(prob(33))
 				item_type = "irregular purple crystal"
 				icon_state = "Phazon"
+			else if(prob(50))
+				item_type = "rough red crystal"
+				icon_state = "changerock"
 			else
 				item_type = "smooth red crystal"
 				icon_state = "ore"
@@ -255,6 +262,7 @@
 				apply_image_decorations = 1
 		if(17)
 			//cultblade
+			apply_prefix = 0
 			new_item = new /obj/item/weapon/melee/cultblade(src.loc)
 			apply_material_decorations = 0
 			apply_image_decorations = 0
@@ -265,10 +273,12 @@
 			new_item.icon = 'xenoarchaeology.dmi'
 			new_item.desc = ""
 		if(19)
+			apply_prefix = 0
 			new_item = new /obj/item/weapon/claymore(src.loc)
 			name = new_item.name
 		if(20)
 			//arcane clothing
+			apply_prefix = 0
 			var/list/possible_spawns = list(/obj/item/clothing/head/culthood,
 			/obj/item/clothing/head/magus,
 			/obj/item/clothing/head/culthood/alt,
@@ -278,16 +288,20 @@
 			new_item = new new_type(src.loc)
 		if(21)
 			//soulstone
+			apply_prefix = 0
 			new_item = new /obj/item/device/soulstone(src.loc)
+			item_type = new_item.name
 			apply_material_decorations = 0
 		if(22)
 			if(prob(50))
 				new_item = new /obj/item/weapon/shard(src.loc)
 			else
 				new_item = new /obj/item/weapon/shard/plasma(src.loc)
+			apply_prefix = 0
 			apply_image_decorations = 0
 			apply_material_decorations = 0
 		if(23)
+			apply_prefix = 0
 			new_item = new /obj/item/stack/rods(src.loc)
 			apply_image_decorations = 0
 			apply_material_decorations = 0
@@ -300,6 +314,7 @@
 			new_item = new new_type(src.loc)
 			apply_material_decorations = 0
 		if(25)
+			apply_prefix = 0
 			new_item = new /obj/item/weapon/katana(src.loc)
 			name = new_item.name
 		if(26)
@@ -326,7 +341,7 @@
 			else
 				new_gun.power_supply.charge = 0
 
-			name = "unknown weapon"
+			name = "gun"
 		if(27)
 			//revolver
 			var/obj/item/weapon/gun/projectile/new_gun = new /obj/item/weapon/gun/projectile(src.loc)
@@ -358,7 +373,7 @@
 						new_gun.loaded.Remove(I)
 						I.loc = null
 
-			name = "unknown weapon"
+			name = "gun"
 		if(28)
 			//completely unknown alien device
 			if(prob(50))
@@ -366,9 +381,13 @@
 		if(29)
 			//fossil bone/skull
 			new_item = new /obj/item/weapon/fossil/base(src.loc)
+			apply_prefix = 0
+			apply_image_decorations = 0
+			apply_material_decorations = 0
 		if(30)
 			//fossil shell
 			new_item = new /obj/item/weapon/fossil/shell(src.loc)
+			apply_prefix = 0
 			apply_image_decorations = 0
 			apply_material_decorations = 0
 			if(prob(10))
@@ -378,8 +397,10 @@
 			new_item = new /obj/item/weapon/fossil/plant(src.loc)
 			apply_image_decorations = 0
 			apply_material_decorations = 0
+			apply_prefix = 0
 		if(32)
 			//humanoid remains
+			apply_prefix = 0
 			name = "humanoid [pick("remains","skeleton")]"
 			icon = 'blood.dmi'
 			icon_state = "remains"
@@ -394,6 +415,7 @@
 			apply_material_decorations = 0
 		if(33)
 			//robot remains
+			apply_prefix = 0
 			name = "[pick("mechanical","robotic","cyborg")] [pick("remains","chassis","debris")]"
 			icon = 'blood.dmi'
 			icon_state = "remainsrobot"
@@ -408,6 +430,7 @@
 			apply_material_decorations = 0
 		if(34)
 			//xenos remains
+			apply_prefix = 0
 			name = "alien [pick("remains","skeleton")]"
 			icon = 'blood.dmi'
 			icon_state = "remainsxeno"
@@ -463,7 +486,11 @@
 			desc += " "
 		desc += engravings
 
-	name = "[item_type]"
+	if(apply_prefix)
+		name = "[pick("Strange","Ancient","Alien","")] [item_type]"
+	else
+		name = item_type
+
 	if(desc)
 		desc += " "
 	desc += additional_desc
@@ -472,7 +499,7 @@
 
 	//icon and icon_state should have already been set
 	if(new_item)
-		new_item.name = "[pick("Strange","Ancient","Alien","")] [new_item.name]"
+		new_item.name = name
 		new_item.desc = src.desc
 
 		if(talkative)
diff --git a/code/modules/research/xenoarchaeology/finds/finds_defines.dm b/code/modules/research/xenoarchaeology/finds/finds_defines.dm
index 9583cb74ad9..dd5aa34dd25 100644
--- a/code/modules/research/xenoarchaeology/finds/finds_defines.dm
+++ b/code/modules/research/xenoarchaeology/finds/finds_defines.dm
@@ -30,6 +30,10 @@
 #define ARCHAEO_FOSSIL 29
 #define ARCHAEO_SHELL 30
 #define ARCHAEO_PLANT 31
+#define ARCHAEO_REMAINS_HUMANOID 32
+#define ARCHAEO_REMAINS_ROBOT 33
+#define ARCHAEO_REMAINS_XENO 34
+#define MAX_ARCHAEO 34
 //eggs
 //droppings
 //footprints
@@ -37,29 +41,6 @@
 
 //DNA sampling from fossils, or a new archaeo type specifically for it?
 
-#define ARTIFACT_REMAINS_HUMANOID 1
-#define ARTIFACT_REMAINS_ROBOT 2
-#define ARTIFACT_REMAINS_XENO 3
-#define ARTIFACT_MACHINERY 4
-#define ARTIFACT_OCCULT 5
-#define ARTIFACT_SYNDBEACON 6
-
-//?
-#define ARTIFACT_HEAL 4
-#define ARTIFACT_BIODAM 5
-#define ARTIFACT_POWERCHARGE 6
-#define ARTIFACT_POWERDRAIN 7
-#define ARTIFACT_EMP 8
-#define ARTIFACT_PLANTGROW 9
-#define ARTIFACT_WEAKEN 10
-#define ARTIFACT_SLEEPY 11
-#define ARTIFACT_TELEPORT 12
-#define ARTIFACT_ROBOHURT 13
-#define ARTIFACT_ROBOHEAL 14
-#define ARTIFACT_DNASWITCH 15
-//#define ARTIFACT_
-//#define ARTIFACT_
-
 //descending order of likeliness to spawn
 #define DIGSITE_GARDEN 1
 #define DIGSITE_ANIMAL 2
@@ -126,8 +107,16 @@
 			return "beryllium"
 		if(ARCHAEO_FOSSIL)
 			return "carbon"
+		if(ARCHAEO_SHELL)
+			return "carbon"
 		if(ARCHAEO_PLANT)
 			return "carbon"
+		if(ARCHAEO_REMAINS_HUMANOID)
+			return "carbon"
+		if(ARCHAEO_REMAINS_ROBOT)
+			return "carbon"
+		if(ARCHAEO_REMAINS_XENO)
+			return "carbon"
 	return "chlorine"
 
 //see /turf/simulated/mineral/New() in code/modules/mining/mine_turfs.dm
diff --git a/code/modules/research/xenoarchaeology/geosample.dm b/code/modules/research/xenoarchaeology/geosample.dm
index cd02736b3fd..9ad8a15b8d4 100644
--- a/code/modules/research/xenoarchaeology/geosample.dm
+++ b/code/modules/research/xenoarchaeology/geosample.dm
@@ -161,7 +161,7 @@ var/list/artifact_spawning_turfs = list()
 		return
 
 	if(container.artifact_find)
-		artifact_distance = rand(-100,100) / 100
+		artifact_distance = rand()
 		artifact_id = container.artifact_find.artifact_id
 	else
 		for(var/turf/simulated/mineral/holder in artifact_spawning_turfs)
@@ -169,7 +169,7 @@ var/list/artifact_spawning_turfs = list()
 				var/dist = get_dist(container, holder)
 				if(dist < holder.artifact_find.artifact_detect_range && dist < src.artifact_distance)
 					src.artifact_distance = dist
-					src.artifact_id = holder.artifact_find
+					src.artifact_id = holder.artifact_find.artifact_id
 			else
 				artifact_spawning_turfs.Remove(holder)
 
diff --git a/code/modules/research/xenoarchaeology/suspension_generator.dm b/code/modules/research/xenoarchaeology/suspension_generator.dm
index b24080df2ff..690431a8366 100644
--- a/code/modules/research/xenoarchaeology/suspension_generator.dm
+++ b/code/modules/research/xenoarchaeology/suspension_generator.dm
@@ -89,6 +89,7 @@
 		dat += "[field_type=="aluminium"?"<b>":""	]<A href='?src=\ref[src];select_field=aluminium'>Aluminium transmitted field</A></b><br>"
 		dat += "[field_type=="silicon"?"<b>":""		]<A href='?src=\ref[src];select_field=silicon'>Silicon wafer conduction</A></b><br>"
 		dat += "[field_type=="calcium"?"<b>":""	]<A href='?src=\ref[src];select_field=calcium'>Calcium binary deoxidiser</A></b><br>"
+		dat += "[field_type=="chlorine"?"<b>":""	]<A href='?src=\ref[src];select_field=chlorine'>Chlorine alkalising field</A></b><br>"
 	else
 		dat += "<br>"
 		dat += "<br>"
@@ -257,6 +258,9 @@
 		if("aluminium")
 			success = 1
 			//
+		if("chlorine")
+			success = 1
+			//
 		if("silicon")
 			success = 1
 			for(var/mob/living/silicon/R in T)
diff --git a/code/modules/research/xenoarchaeology/tools/tools.dm b/code/modules/research/xenoarchaeology/tools/tools.dm
index c36a7b16710..03b3f136fd4 100644
--- a/code/modules/research/xenoarchaeology/tools/tools.dm
+++ b/code/modules/research/xenoarchaeology/tools/tools.dm
@@ -11,7 +11,7 @@
 
 /obj/item/device/gps/attack_self(var/mob/user as mob)
 	var/turf/T = get_turf(src)
-	user << "\blue \icon[src] [src] flashes <i>[10 * T.x + rand(0,9)]:[10 * T.y + rand(0,9)]:[10 * T.z + rand(0,9)]</i>."
+	user << "\blue \icon[src] [src] flashes <i>[10 * T.x].[rand(0,9)]:[10 * T.y].[rand(0,9)]:[10 * T.z].[rand(0,9)]</i>."
 
 /obj/item/device/measuring_tape
 	name = "measuring tape"
diff --git a/code/modules/research/xenoarchaeology/tools/tools_coresampler.dm b/code/modules/research/xenoarchaeology/tools/tools_coresampler.dm
index 11bde6d4b0f..e060fc44ae7 100644
--- a/code/modules/research/xenoarchaeology/tools/tools_coresampler.dm
+++ b/code/modules/research/xenoarchaeology/tools/tools_coresampler.dm
@@ -51,8 +51,8 @@
 	var/datum/geosample/geo_data
 	if(istype(item_to_sample, /turf/simulated/mineral))
 		var/turf/simulated/mineral/T = item_to_sample
+		T.geological_data.UpdateNearbyArtifactInfo(T)
 		geo_data = T.geological_data
-		geo_data.UpdateNearbyArtifactInfo(T)
 	else if(istype(item_to_sample, /obj/item/weapon/ore))
 		var/obj/item/weapon/ore/O = item_to_sample
 		geo_data = O.geological_data
diff --git a/code/modules/research/xenoarchaeology/tools/tools_depthscanner.dm b/code/modules/research/xenoarchaeology/tools/tools_depthscanner.dm
index 3a714bca916..c146f9fd445 100644
--- a/code/modules/research/xenoarchaeology/tools/tools_depthscanner.dm
+++ b/code/modules/research/xenoarchaeology/tools/tools_depthscanner.dm
@@ -56,7 +56,7 @@
 		if(B.artifact_find)
 			//create a new scanlog entry
 			var/datum/depth_scan/D = new()
-			D.coords = "[10 * B.x + rand(0,9)]:[10 * B.y + rand(0,9)]:[10 * B.z + rand(0,9)]"
+			D.coords = "[10 * B.x].[rand(0,9)]:[10 * B.y].[rand(0,9)]:[10 * B.z].[rand(0,9)]"
 			D.time = worldtime2text()
 			D.record_index = positive_locations.len + 1
 
diff --git a/code/modules/research/xenoarchaeology/tools/tools_pickaxe.dm b/code/modules/research/xenoarchaeology/tools/tools_pickaxe.dm
index 7a11c1213a9..f87dfcbc245 100644
--- a/code/modules/research/xenoarchaeology/tools/tools_pickaxe.dm
+++ b/code/modules/research/xenoarchaeology/tools/tools_pickaxe.dm
@@ -4,8 +4,8 @@
 
 /obj/item/weapon/pickaxe/brush
 	name = "brush"
-	//icon_state = "brush"
-	//item_state = "minipick"
+	icon_state = "pick_brush"
+	item_state = "syringe_0"
 	digspeed = 50
 	desc = "Thick metallic wires for clearing away dust and loose scree (1 centimetre excavation depth)."
 	excavation_amount = 0.5
@@ -15,7 +15,7 @@
 /obj/item/weapon/pickaxe/one_pick
 	name = "1/6 pick"
 	//icon_state = "excavation"
-	//item_state = "minipick"
+	item_state = "syringe_0"
 	digspeed = 50
 	desc = "A miniature excavation tool for precise digging (2 centimetre excavation depth)."
 	excavation_amount = 1
@@ -25,7 +25,7 @@
 /obj/item/weapon/pickaxe/two_pick
 	name = "1/3 pick"
 	//icon_state = "excavation"
-	//item_state = "minipick"
+	item_state = "syringe_0"
 	digspeed = 50
 	desc = "A miniature excavation tool for precise digging (4 centimetre excavation depth)."
 	excavation_amount = 2
@@ -35,7 +35,7 @@
 /obj/item/weapon/pickaxe/three_pick
 	name = "1/2 pick"
 	//icon_state = "excavation"
-	//item_state = "minipick"
+	item_state = "syringe_0"
 	digspeed = 50
 	desc = "A miniature excavation tool for precise digging (6 centimetre excavation depth)."
 	excavation_amount = 3
@@ -45,7 +45,7 @@
 /obj/item/weapon/pickaxe/four_pick
 	name = "2/3 pick"
 	//icon_state = "excavation"
-	//item_state = "minipick"
+	item_state = "syringe_0"
 	digspeed = 50
 	desc = "A miniature excavation tool for precise digging (8 centimetre excavation depth)."
 	excavation_amount = 4
@@ -55,7 +55,7 @@
 /obj/item/weapon/pickaxe/five_pick
 	name = "5/6 pick"
 	//icon_state = "excavation"
-	//item_state = "minipick"
+	item_state = "syringe_0"
 	digspeed = 50
 	desc = "A miniature excavation tool for precise digging (10 centimetre excavation depth)."
 	excavation_amount = 5
@@ -65,7 +65,7 @@
 /obj/item/weapon/pickaxe/six_pick
 	name = "1/1 pick"
 	//icon_state = "excavation"
-	//item_state = "minipick"
+	item_state = "syringe_0"
 	digspeed = 50
 	desc = "A miniature excavation tool for precise digging (12 centimetre excavation depth)."
 	excavation_amount = 6
@@ -75,7 +75,7 @@
 /obj/item/weapon/pickaxe/hand
 	name = "hand pickaxe"
 	//icon_state = "excavation"
-	//item_state = "minipick"
+	item_state = "syringe_0"
 	digspeed = 50
 	desc = "A smaller, more precise version of the pickaxe (30 centimetre excavation depth)."
 	excavation_amount = 15
diff --git a/icons/obj/xenoarchaeology.dmi b/icons/obj/xenoarchaeology.dmi
index 88aeb802d8d..57b2d876d33 100644
Binary files a/icons/obj/xenoarchaeology.dmi and b/icons/obj/xenoarchaeology.dmi differ