diff --git a/mods/default/mapgen.lua b/mods/default/mapgen.lua
index 7e803205..dc359a0b 100644
--- a/mods/default/mapgen.lua
+++ b/mods/default/mapgen.lua
@@ -136,6 +136,17 @@ function default.register_ores()
 
 	-- Coal
 
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "default:stone_with_coal",
+		wherein        = "default:stone",
+		clust_scarcity = 8 * 8 * 8,
+		clust_num_ores = 9,
+		clust_size     = 3,
+		y_min          = 1025,
+		y_max          = 31000,
+	})
+
 	minetest.register_ore({
 		ore_type       = "scatter",
 		ore            = "default:stone_with_coal",
@@ -160,6 +171,17 @@ function default.register_ores()
 
 	-- Iron
 
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "default:stone_with_iron",
+		wherein        = "default:stone",
+		clust_scarcity = 9 * 9 * 9,
+		clust_num_ores = 12,
+		clust_size     = 3,
+		y_min          = 1025,
+		y_max          = 31000,
+	})
+
 	minetest.register_ore({
 		ore_type       = "scatter",
 		ore            = "default:stone_with_iron",
@@ -206,6 +228,17 @@ function default.register_ores()
 
 	-- Copper
 
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "default:stone_with_copper",
+		wherein        = "default:stone",
+		clust_scarcity = 9 * 9 * 9,
+		clust_num_ores = 5,
+		clust_size     = 3,
+		y_min          = 1025,
+		y_max          = 31000,
+	})
+
 	minetest.register_ore({
 		ore_type       = "scatter",
 		ore            = "default:stone_with_copper",
@@ -230,6 +263,17 @@ function default.register_ores()
 
 	-- Gold
 
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "default:stone_with_gold",
+		wherein        = "default:stone",
+		clust_scarcity = 13 * 13 * 13,
+		clust_num_ores = 5,
+		clust_size     = 3,
+		y_min          = 1025,
+		y_max          = 31000,
+	})
+
 	minetest.register_ore({
 		ore_type       = "scatter",
 		ore            = "default:stone_with_gold",
@@ -254,6 +298,17 @@ function default.register_ores()
 
 	-- Mese crystal
 
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "default:stone_with_mese",
+		wherein        = "default:stone",
+		clust_scarcity = 14 * 14 * 14,
+		clust_num_ores = 5,
+		clust_size     = 3,
+		y_min          = 1025,
+		y_max          = 31000,
+	})
+
 	minetest.register_ore({
 		ore_type       = "scatter",
 		ore            = "default:stone_with_mese",
@@ -278,6 +333,17 @@ function default.register_ores()
 
 	-- Diamond
 
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "default:stone_with_diamond",
+		wherein        = "default:stone",
+		clust_scarcity = 15 * 15 * 15,
+		clust_num_ores = 4,
+		clust_size     = 3,
+		y_min          = 1025,
+		y_max          = 31000,
+	})
+
 	minetest.register_ore({
 		ore_type       = "scatter",
 		ore            = "default:stone_with_diamond",
@@ -302,6 +368,17 @@ function default.register_ores()
 
 	-- Mese block
 
+	minetest.register_ore({
+		ore_type       = "scatter",
+		ore            = "default:mese",
+		wherein        = "default:stone",
+		clust_scarcity = 36 * 36 * 36,
+		clust_num_ores = 3,
+		clust_size     = 2,
+		y_min          = 1025,
+		y_max          = 31000,
+	})
+
 	minetest.register_ore({
 		ore_type       = "scatter",
 		ore            = "default:mese",