diff --git a/init.lua b/init.lua
index e38ff1e..f05da60 100644
--- a/init.lua
+++ b/init.lua
@@ -26,7 +26,7 @@ local modpath=minetest.get_modpath(minetest.get_current_modname())
 
 dofile(modpath.."/sed.lua")
 dofile(modpath.."/ign.lua")
---dofile(modpath.."/skarn.lua")
+dofile(modpath.."/skarn.lua")
 
 minetest.register_on_mapgen_init(function(mapgen_params)
  -- todo: disable caves and ores
diff --git a/skarn.lua b/skarn.lua
index fd28cc1..81840ee 100644
--- a/skarn.lua
+++ b/skarn.lua
@@ -2,7 +2,7 @@
 -- Skarn deposit
 --
 
-local CommonRarity=0.02 --too high... should be like 0.013
+local CommonRarity=70 --too high... should be like 76
 local CommonRadius=10
 local CommonWherein={ "rocks:granite", "rocks:limestone" }
 
@@ -39,7 +39,7 @@ minetest.register_node( "rocks:skarn_malachyte", {
 rocks.register_vein("rocks:skarn",{
   wherein=CommonWherein,
   miny=-160, maxy=20,
-  radius={ average=CommonRadius, amplitude=3, frequency=5 },
+  radius={ average=CommonRadius, amplitude=0.16, frequency=8 },
   density=80, rarity=CommonRarity,
   ores={
    -- marble and hornfels, as well as unchanged limestone.
@@ -69,7 +69,7 @@ minetest.register_node( "rocks:skarn_galena", {
 rocks.register_vein("rocks:skarn",{
   wherein=CommonWherein,
   miny=-160, maxy=20,
-  radius={ average=CommonRadius, amplitude=3, frequency=5 },
+  radius={ average=CommonRadius, amplitude=0.16, frequency=8 },
   density=80, rarity=CommonRarity,
   ores={
    -- marble and hornfels, as well as unchanged limestone.
@@ -91,7 +91,7 @@ minetest.register_node( "rocks:skarn_magnetite", {
 rocks.register_vein("rocks:skarn",{
   wherein=CommonWherein,
   miny=-160, maxy=20,
-  radius={ average=CommonRadius, amplitude=3, frequency=5 },
+  radius={ average=CommonRadius, amplitude=0.16, frequency=8 },
   density=80, rarity=CommonRarity,
   ores={
    -- marble and hornfels, as well as unchanged limestone.
@@ -119,7 +119,7 @@ minetest.register_node( "rocks:vermiculite", {
 rocks.register_vein("rocks:skarn",{
   wherein=CommonWherein,
   miny=-160, maxy=20,
-  radius={ average=CommonRadius, amplitude=3, frequency=5 },
+  radius={ average=CommonRadius, amplitude=0.16, frequency=8 },
   density=80, rarity=CommonRarity,
   ores={
    -- marble and hornfels, as well as unchanged limestone.