diff --git a/rocks/ign.lua b/rocks/ign.lua
index 2324c6f..b2a921d 100644
--- a/rocks/ign.lua
+++ b/rocks/ign.lua
@@ -46,7 +46,7 @@ local reg=function(name,param)
    height_max     = 28,
    noise_treshhold=param.treshold,
    noise_params={
-          offset = 0, scale = 1, octaves = 3, persist = 0.5,
+          offset = 0, scale = 1, octaves = 2, persist = 0.5,
           spread = {x=param.spread, y=param.height, z=param.spread},
           seed=rocksl.GetNextSeed(),
         },
@@ -62,7 +62,6 @@ rocks.register_igneous_stratus=reg
 -- vein stuff
 
 local regv=function(name,param)
- minetest.log("error","stub called, rocks.register_vein")
  minetest.register_ore({
    ore    = name,
    wherein= param.wherein,
diff --git a/rocks/skarn.lua b/rocks/skarn.lua
index f79684d..e0081ac 100644
--- a/rocks/skarn.lua
+++ b/rocks/skarn.lua
@@ -4,7 +4,7 @@
 
 local CommonRarity=40 --too high... should be like 76
 local CommonRadius=10
-local CommonWherein={ "rocks:granite", "rocks:limestone", "air" }
+local CommonWherein={ "rocks:granite", "rocks:limestone" }
 
 minetest.register_node( "rocks:skarn", {  
 	description = S("Skarn"),