diff --git a/minerdream/api.lua b/minerdream/api.lua
index 7ce7571..28bd77d 100644
--- a/minerdream/api.lua
+++ b/minerdream/api.lua
@@ -142,47 +142,38 @@ minerdream.register_ore=function(i,tdef)
 			minerdream.register_ore_lump(i,tdef)
 		end
 	end
-	if tdef.crack ~= nil then
-		minerdream.register_ore_lump(i,tdef)
-	else
-		-- if not already defined, then add mapgen parameter
-		if tdef.scarcity ~= nil then
-			needs_mapgen = true
-			mapgen_name=minerdream.modname..":"..i
+	if tdef.ore ~= nil then
+		if tdef.ore.crack ~= nil then
+			minerdream.register_ore_lump(i,tdef)
+		else
+			-- if not already defined, then add mapgen parameter
+			if tdef.ore.scarcity ~= nil then
+				needs_mapgen = true
+				mapgen_name=minerdream.modname..":"..i
+			end
 		end
 	end
 	
 	-- define mapgeneration for ores
 	if needs_mapgen then
-		minerdream.register_mapgen(i,tdef,mapgen_name)
+		minerdream.register_mapgen(i,tdef,mapgen_name,tdef.ore)
+		if tdef.nugget ~= nil then
+			minerdream.register_mapgen(i,tdef,mapgen_name.."_poor",tdef.nugget)
+		end
 	end
 	
-	if tdef.groups then
-	-- define ore dust
-	-- only makes sense if it can be grinded
-		if tdef.groups.has_dust and minetest.get_modpath("technic") then
-			minerdream.register_dust(i,tdef)
-		end
-
-		-- define ingot
-		if tdef.groups.has_bar then
-			minerdream.register_ingot(i,tdef)
-		end
-		
-		-- define ore bricks (ore + cobble)
-		if tdef.groups.has_brick then
-			minerdream.register_brick(i,tdef)
-		end
-		
-		-- define ore blocks (9 ores)
-		if tdef.groups.has_block then
-			minerdream.register_block(i,tdef)
-		end
-		
-		-- define bar stack
-		if tdef.groups.has_bar_block then
-			minerdream.register_bar_block(i,tdef)
-		end
+-- define ore dust
+-- only makes sense if it can be grinded
+	if tdef.dust~= nil and minetest.get_modpath("technic") then
+		minerdream.register_dust(i,tdef)
+	end
+	-- register ingots
+	if tdef.ingot ~= nil then
+		minerdream.register_ingot(i,tdef)
+	end
+	
+	if tdef.block ~= nil then 
+		minerdream.register_block(i,tdef)
 	end
 	
 	-- define armor and weapons
@@ -409,10 +400,11 @@ minerdream.register_ore_lump=function(ore_name,tdef)
 	if tdef.nugget ~= nil then
 		local poor_def=table.copy(ore_def)
 		local nugget_def=table.copy(lump_def)
+		local poorimg=tdef.nugget.inventory_image or minerdream.modname.."_"..ore_name.."_poorore.png"
 		poor_def.description=S("Poor").." "..S(ore_name:gsub("^%l", string.upper))
 --				poor_def.name=poor_def.name.."_poor"
 		poor_def.name=minerdream.modname..":stone_with_"..ore_name.."_poor"
-		poor_def.tiles={"default_stone.png^"..minerdream.modname.."_"..ore_name.."_poorore.png"}
+		poor_def.tiles={"default_stone.png^"..poorimg}
 		poor_def.groups.cracky= tdef.nugget.cracky or math.max(1,math.floor(tdef.crack/2)) -- poor ore should be easier to dig
 		nugget_def.description=ore_name:gsub("^%l", string.upper).." Nugget"
 		nugget_def.name=minerdream.modname..":"..ore_name.."_nugget"
@@ -424,90 +416,84 @@ minerdream.register_ore_lump=function(ore_name,tdef)
 	end
 end
 
-minerdream.register_mapgen=function(ore_name,tdef,mapgen_name)
+minerdream.register_mapgen=function(ore_name,tdef,mapgen_name,odef)
 	local wherein={"default:stone"}
 	if tdef.groups.in_desert ~= nil then -- check, if ore can be found in desert stone
 		if minetest.registered_items["default:desert_stone"] ~= nil then
 			wherein={"default:stone","default:desert_stone"}
 		end
 	end
+	local tscar=odef.scarcity or 13
 	local map_def={ore_type    = "scatter",
 				ore            = mapgen_name,
 				wherein        = wherein,
-				clust_scarcity = tdef.scarcity * tdef.scarcity * tdef.scarcity,
-				clust_num_ores = tdef.num_ores or 1,
-				clust_size     = tdef.clust_size or 1,
-				y_min          = tdef.y_min or (-31000),
-				y_max          = tdef.y_max or 0,
+				clust_scarcity = tscar * tscar * tscar,
+				clust_num_ores = odef.num_ores or 1,
+				clust_size     = odef.clust_size or 1,
+				y_min          = odef.y_min or (-31000),
+				y_max          = odef.y_max or 0,
 			}
-	if tdef.groups.has_nugget and tdef.groups.has_nugget>0 then
-		local poor_map_def=table.copy(map_def)
-		poor_map_def.ore=mapgen_name.."_poor"
-		minetest.register_ore(poor_map_def)
-		map_def.clust_scarcity=map_def.clust_scarcity*tdef.groups.has_nugget
-		map_def.clust_size=map_def.clust_size*tdef.groups.has_nugget
-	end
 	local_item_insert(ore_name,"map_def",map_def)
 	minetest.register_ore(map_def)
 end
 
 minerdream.register_ingot=function(ore_name,tdef)
-	local ingot_def=local_create_def(ore_name,"ingot",tdef.groups.has_bar,tdef)
-	ingot_def.groups["metal"]=tdef.tier or 1 -- setting metal group
-	ingot_def.inventory_image=minerdream.modname.."_"..ore_name.."_ingot.png"
-	ingot_def.stack_max = minerdream.ingot_max_stack
-	if tdef.ingot_name then --already defined and overridden with new image
-		if tdef.ingot_name == "" then
+	if tdef.ingot ~= nil then
+		local idef=tdef.ingot
+		local ingot_def=local_create_def(ore_name,"ingot",idef.crack or (tdef.ore.crack+1),tdef)
+		ingot_def.groups["metal"]=tdef.tier or 1 -- setting metal group
+		ingot_def.inventory_image=idef.inventory_image or minerdream.modname.."_"..ore_name.."_ingot.png"
+		ingot_def.stack_max = idef.maxstack or minerdream.ingot_max_stack
+		if tdef.ingot_name then --already defined and overridden with new image
+			if tdef.ingot_name == "" then
+				ingot_def.name=minerdream.modname..":"..ore_name.."_ingot"
+				minetest.register_craftitem(ingot_def.name,ingot_def)
+			else
+				ingot_def.name=nil
+				minetest.override_item(tdef.ingot_name,ingot_def)
+				minetest.register_alias(tdef.ingot_name,minerdream.modname..":"..ore_name.."_bar")
+				ingot_def.name=tdef.ingot_name
+			end
+		else -- not yet defined
 			ingot_def.name=minerdream.modname..":"..ore_name.."_ingot"
 			minetest.register_craftitem(ingot_def.name,ingot_def)
-		else
-			ingot_def.name=nil
-			minetest.override_item(tdef.ingot_name,ingot_def)
-			minetest.register_alias(tdef.ingot_name,minerdream.modname..":"..ore_name.."_bar")
-			ingot_def.name=tdef.ingot_name
 		end
-	else -- not yet defined
-		ingot_def.name=minerdream.modname..":"..ore_name.."_ingot"
-		minetest.register_craftitem(ingot_def.name,ingot_def)
-	end
-	-- if lump is defined and cooking time is given then register cooking recipe
-	if minerdream.items[ore_name].lump_def and tdef.lump_cooking_time then
-		local lump_def=table.copy(minerdream.items[ore_name].lump_def)
-		lump_def.ingot_name=ingot_def.name
-		ingot_def.lump_name=lump_def.name
-		lump_def.cooking_time=tdef.lump_cooking_time
-		-- check, if cooking recipe already registered
-		local output, decremented_input = minetest.get_craft_result({ method = "cooking", width = 1, items = { ItemStack(lump_def.name) }})
-		if output.item:get_name() ~= ingot_def.name then
-			print(ingot_def.name)
-			print(lump_def.name)
-			minetest.register_craft({type="cooking",
-				cooktime=tdef.lump_cooking_time,
-				output=ingot_def.name,
-				recipe=lump_def.name,
-			})
-			minerdream.items[ore_name].lump_def=lump_def
+		-- if lump is defined and cooking time is given then register cooking recipe
+		if minerdream.items[ore_name].lump_def and tdef.lump.cooking_time then
+			local lump_def=table.copy(minerdream.items[ore_name].lump_def)
+			lump_def.ingot_name=ingot_def.name
+			ingot_def.lump_name=lump_def.name
+			lump_def.cooking_time=tdef.lump.cooking_time
+			-- check, if cooking recipe already registered
+			local output, decremented_input = minetest.get_craft_result({ method = "cooking", width = 1, items = { ItemStack(lump_def.name) }})
+			if output.item:get_name() ~= ingot_def.name then
+--				print(ingot_def.name)
+--				print(lump_def.name)
+				minetest.register_craft({type="cooking",
+					cooktime=tdef.lump.cooking_time,
+					output=ingot_def.name,
+					recipe=lump_def.name,
+				})
+				minerdream.items[ore_name].lump_def=lump_def
+			end
 		end
-	end
-	-- if technic loaded and dust registered than add recipes for dust
-	if tdef.groups.has_dust and minetest.get_modpath("technic") then
-		if minerdream.items[ore_name].dust_def then
-			local dust_def=table.copy(minerdream.items[ore_name].dust_def)
-			local cooking_time=tdef.cooking_time or 64
-			cooking_time=math.ceil(cooking_time/minerdream.dust_cooking_time_reduce)
-			dust_def.cooking_time=cooking_time
-			print(ingot_def.name)
-			print(dust_def.name)
-			  minetest.register_craft({type="cooking",
-				cooktime=cooking_time,
-				output=ingot_def.name,
-				recipe=dust_def.name,
-			  })
-			technic.register_grinder_recipe({input = {ingot_def.name}, output = dust_def.name,time=cooking_time})
-			local_item_insert(ore_name,"dust_def",dust_def)
+		-- if technic loaded and dust registered than add recipes for dust
+		if (tdef.dust~=nil) and minetest.get_modpath("technic") then
+			if minerdream.items[ore_name].dust_def then
+				local dust_def=table.copy(minerdream.items[ore_name].dust_def)
+				local cooking_time=tdef.dust.cooking_time or 64
+				dust_def.cooking_time=cooking_time
+				  minetest.register_craft({type="cooking",
+					cooktime=cooking_time,
+					output=ingot_def.name,
+					recipe=dust_def.name,
+				  })
+				technic.register_grinder_recipe({input = {ingot_def.name}, output = dust_def.name,time=cooking_time})
+				local_item_insert(ore_name,"dust_def",dust_def)
+			end
 		end
+		local_item_insert(ore_name,"ingot_def",ingot_def)
 	end
-	local_item_insert(ore_name,"ingot_def",ingot_def)
 end
 
 minerdream.register_brick=function(ore_name,tdef)
@@ -550,7 +536,7 @@ end
 minerdream.register_weapons=function(ore_name,tdef)
 	local ingot_name=minerdream.items[ore_name].ingot_def.name
 	for _,tool in ipairs(minerdream.tools_to_register) do
-		if tdef.groups["has_"..tool] ~= nil then
+		if tdef[tool] ~= nil then
 			local stick = "group:stick"
 			if tool == "bow" then -- for bows use stick for cotton or steel-wire
 				stick = "farming:cotton"
@@ -562,7 +548,7 @@ minerdream.register_weapons=function(ore_name,tdef)
 					end
 				end
 			else
-				if tdef.tool_stick ~= nil then
+				if tdef[tool].tool_stick ~= nil then
 					stick=tdef.tool_stick
 				end
 			end
@@ -575,34 +561,38 @@ minerdream.register_weapons=function(ore_name,tdef)
 end
 
 minerdream.register_dust=function(ore_name,tdef)
-	local dust_def=local_create_def(ore_name,"dust",tdef.groups.has_dust,tdef)
-	dust_def.tiles={minerdream.modname.."_"..ore_name.."_dust.png"}
-	dust_def.inventory_image=minerdream.modname.."_"..ore_name.."_dust.png"
-	local overridden = false
-	
-	-- check, if dust is already defined
-	if minerdream.items[ore_name].lump_def then
-		local lumpdef=minerdream.items[ore_name].lump_def
-		if lumpdef.override_mod ~= nil then
-			local override_dust=lumpdef.override_mod..":"..ore_name.."_dust"
-			if minetest.registered_items[override_dust] ~= nil then
-				-- override existing dust items
-				overridden = true
-				minetest.register_node(":"..override_dust,dust_def)
+	if tdef.dust~=nil then
+		local ddef=tdef.dust
+		local dust_def=local_create_def(ore_name,"dust",ddef.cracky or (tdef.ore.cracky-1),tdef)
+		local dustimg=ddef.inventory_image or minerdream.modname.."_"..ore_name.."_dust.png"
+		dust_def.tiles={dustimg}
+		dust_def.inventory_image=dustimg
+		local overridden = false
+		
+		-- check, if dust is already defined
+		if minerdream.items[ore_name].lump_def then
+			local lumpdef=minerdream.items[ore_name].lump_def
+			if lumpdef.override_mod ~= nil then
+				local override_dust=lumpdef.override_mod..":"..ore_name.."_dust"
+				if minetest.registered_items[override_dust] ~= nil then
+					-- override existing dust items
+					overridden = true
+					minetest.register_node(":"..override_dust,dust_def)
+				end
 			end
 		end
-	end
-	-- if not defined, register node and grinding recipe
-	if not overridden then
-		minetest.register_node(minerdream.modname..":"..ore_name.."_dust",dust_def)
-		if minerdream.items[ore_name].lump_def then
-			local lump_def=table.copy(minerdream.items[ore_name].lump_def)
-			local grind_time=math.ceil((tdef.lump_cooking_time or 64)/minerdream.dust_cooking_time_reduce)
-			lump_def.grind_time=grind_time
-			local_item_insert(ore_name,"lump_def",lump_def)
-			technic.register_grinder_recipe({input = {lump_def.name}, output = dust_def.name.." 2",time=grind_time})
-			dust_def.grind_source=lump_def.name
+		-- if not defined, register node and grinding recipe
+		if not overridden then
+			minetest.register_node(minerdream.modname..":"..ore_name.."_dust",dust_def)
+			if minerdream.items[ore_name].lump_def then
+				local lump_def=table.copy(minerdream.items[ore_name].lump_def)
+				local grind_time=ddef.cooking_time or math.ceil((tdef.lump.cooking_time or 64)/minerdream.dust_cooking_time_reduce)
+				lump_def.grind_time=grind_time
+				local_item_insert(ore_name,"lump_def",lump_def)
+				technic.register_grinder_recipe({input = {lump_def.name}, output = dust_def.name.." 2",time=grind_time})
+				dust_def.grind_source=lump_def.name
+			end
+			local_item_insert(ore_name,"dust_def",dust_def)
 		end
-		local_item_insert(ore_name,"dust_def",dust_def)
 	end
 end
diff --git a/minerdream/config/adamantite.json b/minerdream/config/adamantite.json
index fc01991..733d903 100644
--- a/minerdream/config/adamantite.json
+++ b/minerdream/config/adamantite.json
@@ -1,22 +1,46 @@
-{"clust_size":3,
-"color":"AA2435D0",
-"crack":5,
+{"color":"AA2435D0",
 "groups":{"drop_as_lump":1,
 "has_bar":1,
-"has_dust":1,
-"has_lump":1,
-"has_nugget":3,
 "in_desert":1,
 "is_metall":6},
-"lump":{
-	"inventory_image":"minerdream_adamantite_lump.png",
-	"stack_max":99
+"block":{
+	"inventory_image":"minerdream_adamantite_block.png"
+	},
+"ingot":{
+	"inventory_image":"minerdream_adamantite_ingot.png"
+},
+"ore":{
+	"crack":5,
+	"inventory_image":"minerdream_adamantite_ore.png"
+},
+"lump":{
+	"crack":5,
+	"inventory_image":"minerdream_adamantite_lump.png",
+	"stack_max":99,
+	"cooking_time":58
+},
+"dust":{
+	"cracky":3,
+	"grind_time":32,
+	"cooking_time":28,
+	"inventory_image":"minerdream_adamantite_dust.png"
+},
+"mapgen":{
+	"clust_size":3,
+	"num_ores":4,
+	"scarcity":15,
+	"y_max":-2300,
+	"y_min":-31000
+},
+"nugget":{
+	"inventory_image":"minerdream_adamantite_poorore.png",
+	"cracky":3,
+	"clust_size":3,
+	"num_ores":5,
+	"scarcity":13,
+	"y_max":-2000
 },
-"lump_cooking_time":58,
 "name":"adamantite",
-"num_ores":4,
 "ore_modname":"minerdream",
-"scarcity":14,
-"tier":6,
-"y_max":-2300,
-"y_min":-31000}
+"tier":6
+}
diff --git a/minerdream/config/cobalt.json b/minerdream/config/cobalt.json
index dd458af..f75a7ac 100644
--- a/minerdream/config/cobalt.json
+++ b/minerdream/config/cobalt.json
@@ -1,95 +1,129 @@
-{"axe":{"choppy":[1.5,0.5,0.3],
-"fleshy":10,
-"maxlevel":3},
-"boots":{"choppy":2,
-"cracky":2,
-"crumbly":1,
-"fleshy":13.5,
-"gravity":-0.09,
-"heal":8.25,
-"jump":0.09,
-"level":2,
-"snappy":3,
-"speed":0.09,
-"use":80},
-"chestplate":{"choppy":2,
-"cracky":2,
-"crumbly":1,
-"fleshy":18.5,
-"gravity":-0.09,
-"heal":8.25,
-"jump":0.09,
-"level":2,
-"snappy":3,
-"speed":0.09,
-"use":80},
-"clust_size":3,
-"color":"3F7390D0",
-"crack":4,
-"groups":{"drop_as_lump":1,
-"has_bar":1,
-"has_bar_block":3,
-"has_block":1,
-"has_bow":1,
-"has_brick":3,
-"has_dust":1,
-"has_lump":1,
-"has_nugget":3,
-"has_shovel":1,
-"in_desert":1,
-"is_metall":5},
-"helmet":{"choppy":2,
-"cracky":2,
-"crumbly":1,
-"fleshy":13.5,
-"gravity":-0.09,
-"heal":8.25,
-"jump":0.09,
-"level":2,
-"snappy":3,
-"speed":0.09,
-"use":80},
-"leggings":{"choppy":2,
-"cracky":2,
-"crumbly":1,
-"fleshy":18.5,
-"gravity":-0.09,
-"heal":8.25,
-"jump":0.09,
-"level":2,
-"snappy":3,
-"speed":0.09,
-"use":80},
-"lump_cooking_time":32,
-"name":"cobalt",
-"num_ores":3,
-"ore_modname":"minerdream",
-"pick":{"cracky":[1.5,0.7,0.25,3.5,5],
-"fleshy":9,
-"maxlevel":3},
-"scarcity":15,
-"shields":{"choppy":2,
-"cracky":2,
-"crumbly":1,
-"fleshy":13.5,
-"gravity":-0.09,
-"heal":8.25,
-"jump":0.09,
-"level":2,
-"snappy":3,
-"speed":0.09,
-"use":80},
-"shovel":{"crumbly":[0.8,0.3,0.15],
-"fleshy":8,
-"maxlevel":3},
-"spear":{"fleshy":11,
-"range":6.9,
-"snappy":[1.5,0.7,0.1]},
-"sword":{"fleshy":10,
-"maxlevel":3,
-"snappy":[1.5,0.7,0.1]},
-"tier":5,
-"tool_cotton":"steel_wire",
-"tool_stick":"minerdream:steelstick",
-"y_max":-500,
-"y_min":-31000}
+{
+"block":{
+	"inventory_image":"minerdream_adamantite_block.png"
+	},
+"ingot":{
+	"inventory_image":"minerdream_adamantite_ingot.png"
+},
+"ore":{
+	"crack":4,
+	"inventory_image":"minerdream_adamantite_ore.png"
+},
+"lump":{
+	"crack":4,
+	"inventory_image":"minerdream_adamantite_lump.png",
+	"stack_max":99,
+	"cooking_time":32
+},
+"dust":{
+	"cracky":2,
+	"grind_time":18,
+	"cooking_time":20,
+	"inventory_image":"minerdream_adamantite_dust.png"
+},
+"mapgen":{
+	"clust_size":3,
+	"num_ores":3,
+	"scarcity":15,
+	"y_max":-500,
+	"y_min":-31000
+},
+"nugget":{
+	"inventory_image":"minerdream_adamantite_poorore.png",
+	"cracky":2,
+	"clust_size":3,
+	"num_ores":3,
+	"scarcity":13,
+	"y_max":-350
+},
+	"color":"3F7390D0",
+	"groups":{"drop_as_lump":1,
+		"has_bar":1,
+		"has_bow":1,
+		"has_brick":3,
+		"in_desert":1,
+		"is_metall":5},
+	"name":"cobalt",
+	"ore_modname":"minerdream",
+	"tier":5,
+	"tool_cotton":"steel_wire",
+	"tools":{
+	"shovel":{"crumbly":[0.8,0.3,0.15],
+		"fleshy":8,
+		"tool_stick":"minerdream:steelstick",
+		"maxlevel":3},
+	"spear":{"fleshy":11,
+		"range":6.9,
+		"tool_stick":"minerdream:steelstick",
+		"snappy":[1.5,0.7,0.1]},
+	"sword":{"fleshy":10,
+		"tool_stick":"minerdream:steelstick",
+		"maxlevel":3,
+		"snappy":[1.5,0.7,0.1]},
+	"pick":{"cracky":[1.5,0.7,0.25,3.5,5],
+		"tool_stick":"minerdream:steelstick",
+		"fleshy":9,
+		"maxlevel":3},
+	"axe":{"choppy":[1.5,0.5,0.3],
+		"tool_stick":"minerdream:steelstick",
+		"fleshy":10,
+		"maxlevel":3}
+	},
+	"3d_armor":{
+	"shields":{"choppy":2,
+		"cracky":2,
+		"crumbly":1,
+		"fleshy":13.5,
+		"gravity":-0.09,
+		"heal":8.25,
+		"jump":0.09,
+		"level":2,
+		"snappy":3,
+		"speed":0.09,
+		"use":80},
+	"helmet":{"choppy":2,
+		"cracky":2,
+		"crumbly":1,
+		"fleshy":13.5,
+		"gravity":-0.09,
+		"heal":8.25,
+		"jump":0.09,
+		"level":2,
+		"snappy":3,
+		"speed":0.09,
+		"use":80},
+	"leggings":{"choppy":2,
+		"cracky":2,
+		"crumbly":1,
+		"fleshy":18.5,
+		"gravity":-0.09,
+		"heal":8.25,
+		"jump":0.09,
+		"level":2,
+		"snappy":3,
+		"speed":0.09,
+		"use":80},
+	"boots":{"choppy":2,
+			"cracky":2,
+			"crumbly":1,
+			"fleshy":13.5,
+			"gravity":-0.09,
+			"heal":8.25,
+			"jump":0.09,
+			"level":2,
+			"snappy":3,
+			"speed":0.09,
+			"use":80},
+	"chestplate":{"choppy":2,
+			"cracky":2,
+			"crumbly":1,
+			"fleshy":18.5,
+			"gravity":-0.09,
+			"heal":8.25,
+			"jump":0.09,
+			"level":2,
+			"snappy":3,
+			"speed":0.09,
+			"use":80}
+	}
+}
diff --git a/minerdream/read_ore_config.lua b/minerdream/read_ore_config.lua
index e3974a4..b515345 100644
--- a/minerdream/read_ore_config.lua
+++ b/minerdream/read_ore_config.lua
@@ -10,5 +10,9 @@ for i,oc in pairs(ore_configs) do
 	ore=string.split(oc,'.')[1]
 	local inconfig=basic_functions.read_file(minerdream.path..'/config/'..oc)
 	local json_conf=minetest.parse_json(inconfig)
-	minerdream.register_ore(ore,json_conf)
+	if json_conf==nil then
+		print("wrong config:"..i)
+	else
+		minerdream.register_ore(ore,json_conf)
+	end
 end