diff --git a/minerals.lua b/minerals.lua
index aad04be..e7b75ba 100644
--- a/minerals.lua
+++ b/minerals.lua
@@ -39,7 +39,7 @@ if industrialtest.mtgAvailable then
 		y_min=-31000
 	})
 
-	industrialtest.internal.registerMetal("iridium","Iridium",4)
+	industrialtest.internal.registerMetal("iridium","Iridium",3)
 	minetest.register_ore({
 		ore_type="scatter",
 		ore="industrialtest:stone_with_iridium",