diff --git a/technic_worldgen/nodes.lua b/technic_worldgen/nodes.lua
index 17e61a1..ad70d63 100644
--- a/technic_worldgen/nodes.lua
+++ b/technic_worldgen/nodes.lua
@@ -89,7 +89,7 @@ minetest.register_node( ":technic:marble", {
 	description = S("Marble"),
 	tiles = { "technic_marble.png" },
 	is_ground_content = true,
-	groups = {cracky=3, marble=1},
+	groups = {cracky=3, marble=1,pickaxey=3},
 	sounds = stone_sounds,
 	_mcl_hardness =  3,
 	_mcl_blast_resistance =  3,
@@ -101,15 +101,19 @@ minetest.register_node( ":technic:marble_bricks", {
 	description = S("Marble Bricks"),
 	tiles = { "technic_marble_bricks.png" },
 	is_ground_content = false,
-	groups = {cracky=3},
+	groups = {cracky=3,pickaxey=3},
 	sounds = stone_sounds,
+	_mcl_hardness =  3,
+	_mcl_blast_resistance =  3,
+	_mcl_silk_touch_drop = true,
+	_mcl_fortune_drop = mcl_core.fortune_drop_ore
 })
 
 minetest.register_node(":technic:uranium_block", {
 	description = S("Uranium Block"),
 	tiles = { "technic_uranium_block.png" },
 	is_ground_content = true,
-	groups = {uranium_block=1, cracky=1, level=2, radioactive=2},
+	groups = {uranium_block=1, cracky=1, level=2, radioactive=2,pickaxey=5},
 	sounds = stone_sounds,
 	_mcl_hardness =  5,
 	_mcl_blast_resistance =  3,
@@ -121,7 +125,7 @@ minetest.register_node(":technic:chromium_block", {
 	description = S("Chromium Block"),
 	tiles = { "technic_chromium_block.png" },
 	is_ground_content = true,
-	groups = {cracky=1, level=2},
+	groups = {cracky=1, level=2,pickaxey=4},
 	sounds = stone_sounds,
 	_mcl_hardness =  4,
 	_mcl_blast_resistance =  3,
@@ -133,7 +137,7 @@ minetest.register_node(":technic:zinc_block", {
 	description = S("Zinc Block"),
 	tiles = { "technic_zinc_block.png" },
 	is_ground_content = true,
-	groups = {cracky=1, level=2},
+	groups = {cracky=1, level=2,pickaxey=3},
 	sounds = stone_sounds,
 	_mcl_hardness =  3,
 	_mcl_blast_resistance =  3,
@@ -145,10 +149,10 @@ minetest.register_node(":technic:lead_block", {
 	description = S("Lead Block"),
 	tiles = { "technic_lead_block.png" },
 	is_ground_content = true,
-	groups = {cracky=1, level=2},
+	groups = {cracky=1, level=2,pickaxey=5},
 	sounds = stone_sounds,
 	_mcl_hardness =  5,
-	_mcl_blast_resistance =  3,
+	_mcl_blast_resistance =  5,
 	_mcl_silk_touch_drop = true,
 	_mcl_fortune_drop = mcl_core.fortune_drop_ore,
 })