Changed plasma to not spawn so often, but now shows up on analyzer ping and grants more points. Reduced effectiveness of "Window shopping" on the asteroid by surrounding random mineral turfs in no-chance turfs. Changed the mining locker's sprite to something else, courtesy of Jordie0608.

code/modules/mining/equipment_locker.dm

@@ -17,7 +17,7 @@
 	var/stack_amt = 50; //amount to stack before releasing
 	var/obj/item/weapon/card/id/inserted_id
 	var/points = 0
-	var/list/ore_values = list(("sand" = 1), ("iron" = 1), ("plasma" = 10), ("gold" = 20), ("silver" = 20), ("uranium" = 20), ("bananium" = 30), ("diamond" = 40))
+	var/list/ore_values = list(("sand" = 1), ("iron" = 1), ("gold" = 20), ("silver" = 20), ("uranium" = 20), ("bananium" = 30), ("diamond" = 40), ("plasma" = 40))
 
 /obj/machinery/mineral/ore_redemption/proc/process_sheet(obj/item/weapon/ore/O)
 	var/obj/item/stack/sheet/processed_sheet = SmeltMineral(O)
@@ -132,8 +132,8 @@
 /obj/machinery/mineral/equipment_locker
 	name = "mining equipment locker"
 	desc = "An equipment locker for miners, points collected at an ore redemption machine can be spent here."
-	icon = 'icons/obj/suitstorage.dmi'
-	icon_state = "suitstorage000001100"
+	icon = 'icons/obj/machines/mining_machines.dmi'
+	icon_state = "mining"
 	density = 1
 	anchored = 1.0
 	var/obj/item/weapon/card/id/inserted_id

code/modules/mining/mine_turfs.dm

@@ -3,7 +3,7 @@
 /turf/simulated/mineral //wall piece
 	name = "Rock"
 	icon = 'icons/turf/walls.dmi'
-	icon_state = "rock"
+	icon_state = "rock_nochance"
 	oxygen = 0
 	nitrogen = 0
 	opacity = 1
@@ -16,7 +16,7 @@
 	var/spreadChance = 0 //the percentual chance of an ore spreading to the neighbouring tiles
 	var/last_act = 0
 	var/scan_state = null //Holder for the image we display when we're pinged by a mining scanner
-	var/hidden = 0
+	var/hidden = 1
 
 /turf/simulated/mineral/ex_act(severity)
 	switch(severity)
@@ -71,7 +71,8 @@
 
 /turf/simulated/mineral/random
 	name = "Mineral deposit"
-	var/mineralSpawnChanceList = list("Uranium" = 1, "Diamond" = 1, "Gold" = 1, "Silver" = 1, "Plasma" = 25, "Iron" = 50, "Gibtonite" = 4/*, "Adamantine" =5*/, "Cave" = 2)//Currently, Adamantine won't spawn as it has no uses. -Durandan
+	icon_state = "rock"
+	var/mineralSpawnChanceList = list("Uranium" = 1, "Diamond" = 1, "Gold" = 1, "Silver" = 1, "Plasma" = 1, "Iron" = 50, "Gibtonite" = 4/*, "Adamantine" =5*/, "Cave" = 2)//Currently, Adamantine won't spawn as it has no uses. -Durandan
 	var/mineralChance = 10  //means 10% chance of this plot changing to a mineral deposit
 
 /turf/simulated/mineral/random/New()
@@ -108,7 +109,7 @@
 /turf/simulated/mineral/random/high_chance
 	icon_state = "rock_highchance"
 	mineralChance = 25
-	mineralSpawnChanceList = list("Uranium" = 10, "Iron" = 30, "Diamond" = 2, "Gold" = 10, "Silver" = 10, "Plasma" = 25)
+	mineralSpawnChanceList = list("Uranium" = 10, "Iron" = 30, "Diamond" = 2, "Gold" = 10, "Silver" = 10, "Plasma" = 10)
 
 /turf/simulated/mineral/random/high_chance/New()
 	icon_state = "rock"
@@ -116,8 +117,8 @@
 
 /turf/simulated/mineral/random/low_chance
 	icon_state = "rock_lowchance"
-	mineralChance = 10
-	mineralSpawnChanceList = list("Uranium" = 1, "Diamond" = 1, "Gold" = 1, "Silver" = 1, "Plasma" = 25, "Iron" = 50, "Gibtonite" = 4)
+	mineralChance = 5
+	mineralSpawnChanceList = list("Uranium" = 1, "Diamond" = 1, "Gold" = 1, "Silver" = 1, "Plasma" = 1, "Iron" = 50, "Gibtonite" = 4)
 
 /turf/simulated/mineral/random/low_chance/New()
 	icon_state = "rock"
@@ -139,6 +140,7 @@
 	mineralAmt = 5
 	spreadChance = 20
 	spread = 1
+	hidden = 0
 
 /turf/simulated/mineral/diamond
 	name = "Diamond deposit"
@@ -172,8 +174,10 @@
 	icon_state = "rock_Plasma"
 	mineralName = "Plasma"
 	mineralAmt = 5
-	spreadChance = 25
+	spreadChance = 0
 	spread = 1
+	hidden = 1
+	scan_state = "rock_Plasma"
 
 /turf/simulated/mineral/clown
 	name = "Bananium deposit"
@@ -182,6 +186,7 @@
 	mineralAmt = 3
 	spreadChance = 0
 	spread = 0
+	hidden = 0
 
 ////////////////////////////////Gibtonite
 /turf/simulated/mineral/gibtonite
@@ -337,7 +342,7 @@
 
 /turf/simulated/floor/plating/asteroid/airless/cave/proc/SpawnFloor(var/turf/T)
 	for(var/turf/S in range(2,T))
-		if(istype(S, /turf/space) || istype(S, /turf/simulated/mineral/random/low_chance))
+		if(istype(S, /turf/space) || istype(S.loc, /area/mine/explored))
 			sanity = 0
 			break
 	if(!sanity)
@@ -393,10 +398,6 @@
 		if(do_after(user,W:digspeed))
 			user << "\blue You finish cutting into the rock."
 			gets_drilled()
-
-	if(istype(W, /obj/item/weapon/resonator))
-		var/obj/item/weapon/resonator/R = W
-		R.CreateResonance(src)
 	else
 		return attack_hand(user)
 	return

code/modules/mining/ores_coins.dm

@@ -52,7 +52,7 @@
 	name = "Plasma ore"
 	icon_state = "Plasma ore"
 	origin_tech = "materials=2"
-	points = 10
+	points = 40
 	refined_type = /obj/item/stack/sheet/mineral/plasma
 
 /obj/item/weapon/ore/plasma/attackby(obj/item/I as obj, mob/user as mob)