local S = lib_materials.intllib

--[[

	Includes nodes from Technic, Mapgen, Stone, Darkage, Valleys_c, and others.
	
	stone_brown and stone_sand are creations of Steven G. Merchant (aka Shad MOrdre -- shadmordre@minetest.net or shadmordre@gmail.com) Copyright 2016©

--]]

lib_materials.register_stone = function(name, desc, texture, stone_cracky, stone_level)

	minetest.register_node("lib_materials:stone_"..name.."", {
		description = S("Stone - "..desc..""),
		tiles = {texture},
		is_ground_content = true,
		groups = {cracky = stone_cracky, stone = 1, level = stone_level},
		drop = 'lib_materials:'..name..'',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})

	--if stairs and lib_materials.enable_stairs then
		--register_stairs
	--end
	
	--if shapes and lib_materials.enable_shapes then
		--register_shapes
	--end
	
	--if shapes and lib_materials.enable_slopes then
		--register_slopes
	--end
	
	--minetest.after(3, lib_architecture.register_nodes, name, desc, texture, "lib_materials:stone_"..name, default.node_sound_stone_defaults())
	--lib_architecture.register_nodes(name, desc, texture, "lib_materials:"..name.."", default.node_sound_stone_defaults())
	
	-- natural_slopes.register_slope("lib_materials:"..name.."", {
		-- groups = {cracky = 3, stone = 1, level = 2},
		-- tiles = {texture},
		-- description = ""..desc.." slope",
		-- sounds = default.node_sound_stone_defaults()({footstep = {['name'] = "default_grass_footstep", ['gain'] = 0.25},})
		-- },
		-- 1
	-- )


end

	lib_materials.register_stone("travertine", "Travertine", "lib_materials_stone_travertine.png", 3, 1)
	lib_materials.register_stone("rhyolite", "Rhyolite", "lib_materials_stone_rhyolite.png", 3, 1)
	lib_materials.register_stone("sandstone_red", "Sandstone Red", "lib_materials_stone_sandstone_red.png", 3, 1)
	lib_materials.register_stone("serpentine_02", "Serpentine 02", "lib_materials_stone_serpentine_02.png", 3, 1)
	lib_materials.register_stone("granite_black", "Granite Black", "lib_materials_stone_granite_black.png", 3, 1)
	lib_materials.register_stone("granite_brown_02", "Granite Brown 02", "lib_materials_stone_granite_brown_02.png", 3, 1)
	lib_materials.register_stone("granite_04", "Granite 04", "lib_materials_stone_granite_04.png", 3, 1)
	lib_materials.register_stone("brownstone", "Brownstone", "lib_materials_stone_brownstone.png", 3, 1)
	
--CUSTOM
	minetest.register_node("lib_materials:cobble_stone_desert_default", {
		tiles = {"lib_materials_stone_desert_default.png^(lib_materials_stone_cobble_default.png^[mask:lib_materials_mask_cobble.png)"},
		description = "Cobble - Stone Desert Default",
		is_ground_content = true,
		groups = {cracky=3, stone=2},
	})
	minetest.register_node("lib_materials:dirt_desert_cobble_stone", {
		tiles = {"lib_materials_stone_desert_default.png^(lib_materials_dirt.png^[mask:lib_materials_mask_cobble.png)"},
		description = "Cobble - Stone Desert Default",
		is_ground_content = true,
		groups = {cracky=3, stone=2},
	})
	minetest.register_node("lib_materials:dirt_cobble_stone", {
		tiles = {"lib_materials_stone_cobble_default.png^(lib_materials_dirt.png^[mask:lib_materials_mask_cobble.png)"},
		description = "Dirt Cobble Stone",
		is_ground_content = true,
		groups = {cracky=3, stone=2},
	})
	minetest.register_node("lib_materials:dirt_stone", {
		tiles = { "lib_materials_stone_default.png^(lib_materials_dirt.png^[mask:lib_materials_mask_stone.png)" },
		description = "Dirt Stone",
		is_ground_content = true,
		groups = {cracky=3, stone=2},
	})
	minetest.register_node("lib_materials:sand_with_stone_desert", {
		tiles = { "lib_materials_stone_desert_default.png^(lib_materials_sand_desert_default.png^[mask:lib_materials_mask_stone.png)" },
		description = "Desert Sand with Desert Stone",
		is_ground_content = true,
		groups = {cracky=3, stone=2},
	})

--Castles mod.  (To be converted)
	minetest.register_node("lib_materials:stone_castle_dungeon", {
		description = S("Stone - Castle Dungeon"),
		tiles = {"castle_dungeon_stone.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1, level = 2},
		drop = 'lib_materials:stone_castle_dungeon',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_castle_pavement", {
		description = S("Stone - Castle Pavement"),
		tiles = {"castle_pavement_brick.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1},
		drop = 'lib_materials:stone_castle_pavement',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_castle_rubble", {
		description = S("Stone - Castle Rubble"),
		tiles = {"castle_rubble.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1},
		drop = 'lib_materials:stone_castle_rubble',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_castle_slate", {
		description = S("Stone - Castle Slate"),
		tiles = {"castle_slate.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1},
		drop = 'lib_materials:stone_castle_slate',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_castle_wall", {
		description = S("Stone - Castle Wall"),
		tiles = {"castle_stonewall.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1, level = 2},
		drop = 'lib_materials:stone_castle_wall',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})

--DecoBlocks mod.  (To be moved to type_deco.lua)
	minetest.register_node("lib_materials:stone_sandstone_pillar", {
		description = S("Stone - Sandstone Pillar"),
		tiles = {
			"decoblocks_sandstone_pillar_top.png",
			"decoblocks_sandstone_pillar_top.png", 
			"decoblocks_sandstone_pillar.png",
			"decoblocks_sandstone_pillar.png", 
			"decoblocks_sandstone_pillar.png",
			"decoblocks_sandstone_pillar.png", 
		},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1},
		drop = 'lib_materials:stone_castle_rubble',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})

--GrailTest game
	minetest.register_node("lib_materials:stone_bluestone", {
		description = S("Stone - Blue Stone"),
		tiles = {"lib_materials_stone_bluestone.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1, level = 2},
		drop = 'lib_materials:stone_bluestone',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_greenstone", {
		description = S("Stone - Green Stone"),
		tiles = {"lib_materials_stone_greenstone.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1, level = 2},
		drop = 'lib_materials:stone_greenstone',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_whitestone", {
		description = S("Stone - White Stone"),
		tiles = {"lib_materials_stone_whitestone.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1, level = 2},
		drop = 'lib_materials:stone_whitestone',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})

	minetest.register_node("lib_materials:stone_brown", {
		description = S("Stone - Brown Stone"),
		tiles = {"lib_materials_stone_brown.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1, level = 2},
		drop = 'lib_materials:stone_brown',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_sand", {
		description = S("Stone - Sand Stone"),
		tiles = {"lib_materials_stone_sand.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1, level = 2},
		drop = 'lib_materials:stone_sand',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})

	--Default
	minetest.register_node("lib_materials:stone", {
		description = S("Stone"),
		tiles = {"lib_materials_stone_default.png"},
		groups = {cracky = 3, stone = 1},
		drop = 'lib_materials:cobble',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_brick", {
		description = S("Stone - Brick"),
		paramtype2 = "facedir",
		place_param2 = 0,
		tiles = {"lib_materials_stone_brick.png"},
		is_ground_content = false,
		groups = {cracky = 2, stone = 1},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_block", {
		description = S("Stone - Block"),
		tiles = {"lib_materials_stone_block.png"},
		is_ground_content = false,
		groups = {cracky = 2, stone = 1},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_cobble", {
		description = S("Stone - Cobble"),
		tiles = {"lib_materials_stone_cobble_default.png"},
		is_ground_content = false,
		groups = {cracky = 3, stone = 2},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_cobble_small", {
		description = S("Stone - Cobble Small"),
		tiles = {"lib_materials_stone_default_cobble_small.png"},
		is_ground_content = false,
		groups = {cracky = 3, stone = 2},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_cobble_mossy", {
		description = S("Stone - Mossy Cobble"),
		tiles = {"lib_materials_stone_cobble_mossy.png"},
		is_ground_content = false,
		groups = {cracky = 3, stone = 1},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_gravel", {
		description = S("Stone - Gravel"),
		tiles = {"lib_materials_stone_gravel_default.png"},
		is_ground_content = false,
		groups = {crumbly = 2, falling_node = 1},
		sounds = default.node_sound_gravel_defaults(),
		drop = {
			max_items = 1,
			items = {
				{items = {'default:flint'}, rarity = 16},
				{items = {'lib_materials:stone_gravel'}}
			}
		}
	})
	minetest.register_node("lib_materials:stone_default_rockwall", {
		description = S("Rockwall - Stone"),
		tiles = {"lib_materials_stone_default_rockwall.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1, level = 2},
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_desert", {
		description = S("Stone - Desert"),
		tiles = {"lib_materials_stone_desert_default.png"},
		groups = {cracky = 3, stone = 1},
		drop = 'lib_materials:desert_cobble',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_desert_brick", {
		description = S("Stone - Desert Brick"),
		paramtype2 = "facedir",
		place_param2 = 0,
		tiles = {"lib_materials_stone_desert_brick.png"},
		is_ground_content = false,
		groups = {cracky = 2, stone = 1},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_desert_block", {
		description = S("Stone - Desert Block"),
		tiles = {"lib_materials_stone_desert_block.png"},
		is_ground_content = false,
		groups = {cracky = 2, stone = 1},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_desert_cobble", {
		description = S("Stone - Desert Cobble"),
		tiles = {"lib_materials_stone_desert_cobble.png"},
		is_ground_content = false,
		groups = {cracky = 3, stone = 2},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_desert_cobble_small", {
		description = S("Stone - Desert Cobble Small"),
		tiles = {"lib_materials_stone_desert_cobble_small.png"},
		is_ground_content = false,
		groups = {cracky = 3, stone = 2},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_desert_rockwall", {
		description = S("Stone - Desert Rockwall"),
		tiles = {"lib_materials_stone_desert_rockwall.png"},
		is_ground_content = false,
		groups = {cracky = 3, stone = 2},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_obsidian", {
		description = S("Stone - Obsidian"),
		tiles = {"lib_materials_stone_obsidian_default.png"},
		sounds = default.node_sound_stone_defaults(),
		groups = {cracky = 1, level = 2},
	})
	minetest.register_node("lib_materials:stone_obsidian_brick", {
		description = S("Stone - Obsidian Brick"),
		paramtype2 = "facedir",
		place_param2 = 0,
		tiles = {"lib_materials_stone_obsidian_brick.png"},
		is_ground_content = false,
		sounds = default.node_sound_stone_defaults(),
		groups = {cracky = 1, level = 2},
	})
	minetest.register_node("lib_materials:stone_obsidian_block", {
		description = S("Stone - Obsidian Block"),
		tiles = {"lib_materials_stone_obsidian_block.png"},
		is_ground_content = false,
		sounds = default.node_sound_stone_defaults(),
		groups = {cracky = 1, level = 2},
	})
	minetest.register_node("lib_materials:stone_sandstone", {
		description = S("Stone - Sandstone"),
		tiles = {"lib_materials_stone_sandstone_default.png"},
		groups = {crumbly = 1, cracky = 3},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_sandstone_brick", {
		description = S("Stone - Sandstone Brick"),
		paramtype2 = "facedir",
		place_param2 = 0,
		tiles = {"lib_materials_stone_sandstone_brick.png"},
		is_ground_content = false,
		groups = {cracky = 2},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_sandstone_block", {
		description = S("Stone - Sandstone Block"),
		tiles = {"lib_materials_stone_sandstone_block.png"},
		is_ground_content = false,
		groups = {cracky = 2},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_sandstone_desert", {
		description = S("Stone - Sandstone Desert"),
		tiles = {"lib_materials_stone_sandstone_desert_default.png"},
		groups = {crumbly = 1, cracky = 3},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_sandstone_desert_brick", {
		description = S("Stone - Sandstone Desert Brick"),
		paramtype2 = "facedir",
		place_param2 = 0,
		tiles = {"lib_materials_stone_sandstone_desert_brick.png"},
		is_ground_content = false,
		groups = {cracky = 2},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_sandstone_desert_block", {
		description = S("Stone - Sandstone Desert Block"),
		tiles = {"lib_materials_stone_sandstone_desert_block.png"},
		is_ground_content = false,
		groups = {cracky = 2},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_sandstone_desert_gravel", {
		description = S("Stone - Sandstone Desert Gravel"),
		tiles = {"lib_materials_stone_sandstone_desert_gravel.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1, level = 2},
		drop = 'lib_materials:lib_materials:stone_sandstone_desert_gravel',
		legacy_mineral = true,
		sounds = default.node_sound_gravel_defaults(),
	})
	minetest.register_node("lib_materials:stone_sandstone_silver", {
		description = S("Stone - Sandstone Silver"),
		tiles = {"lib_materials_stone_sandstone_silver_default.png"},
		groups = {crumbly = 1, cracky = 3},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_sandstone_silver_brick", {
		description = S("Stone - Sandstone Silver Brick"),
		paramtype2 = "facedir",
		place_param2 = 0,
		tiles = {"lib_materials_stone_sandstone_silver_brick.png"},
		is_ground_content = false,
		groups = {cracky = 2},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_sandstone_silver", {
		description = S("Stone - Sandstone Silver Block"),
		tiles = {"lib_materials_stone_sandstone_silver_block.png"},
		is_ground_content = false,
		groups = {cracky = 2},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_sandstone_white", {
		description = S("Stone -  - White Sandstone"),
		tiles = {"lib_materials_stone_sandstone_white.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1, level = 2},
		drop = 'lib_materials:stone_sandstone_white',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_sandstone_white_brick", {
		description = S("Stone -  - White Sandstone Brick"),
		tiles = {"lib_materials_stone_sandstone_white_brick.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1, level = 2},
		drop = 'lib_materials:stone_sandstone_white_brick',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_sandstone_white_gravel", {
		description = S("Stone -  - White Sandstone Gravel"),
		tiles = {"lib_materials_stone_sandstone_white_gravel.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1, level = 2},
		drop = 'lib_materials:stone_sandstone_white_gravel',
		legacy_mineral = true,
		sounds = default.node_sound_gravel_defaults(),
	})

	minetest.register_node("lib_materials:stone_adobe", {
		description = S("Stone - Adobe"),
		tiles = {"lib_materials_stone_adobe.png"},
		is_ground_content = true,
		groups = {crumbly=3},
		sounds = default.node_sound_sand_defaults(),
	})
	minetest.register_node("lib_materials:stone_andesite", {  
		description = S("Stone - Andesite"),
		tiles = {"lib_materials_stone_andesite.png" },
		groups = {cracky=3, stone=1}, 
		is_ground_content = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_basalt_01", {
		description = S("Stone - Basalt 01"),
		tiles = {"lib_materials_stone_basalt_01.png"},
		is_ground_content = true,
		drop = get_node_drops("lib_materials:stone_basalt_01","lib_materials:stone_basalt_01_cobble"),
		groups = {cracky = 3, stone = 1},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_basalt_01_block", {
		description = S("Stone - Basalt 01 Block"),
		tiles = {"lib_materials_stone_basalt_01_block.png"},
		is_ground_content = false,
		groups = {cracky = 2, stone = 1},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_basalt_01_brick", {
		description = S("Stone - Basalt 01 Brick"),
		tiles = {"lib_materials_stone_basalt_01_brick.png"},
		is_ground_content = false,
		groups = {cracky = 2, stone = 1},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_basalt_01_cobble", {
		description = S("Stone - Basalt 01 Cobble"),
		tiles = {"lib_materials_stone_basalt_01_cobble.png"},
		is_ground_content = false,
		groups = {cracky = 3, stone = 2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_basalt_02", {
		description = S("Stone - Basalt 02"),
		tiles = {"lib_materials_stone_basalt_02.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1, level = 2},
		drop = 'lib_materials:stone_basalt_02',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_basalt_03", {  
		description = S("Stone - Basalt 03"),
		tiles = {"lib_materials_stone_basalt_03.png" },
		groups = {cracky=3, stone=1}, 
		is_ground_content = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_chalk", {
		description = S("Stone - Chalk"),
		tiles = {"lib_materials_stone_chalk.png"},
		is_ground_content = true,
		drop = 'lib_materials:chalk_powder 2',
		groups = {crumbly=2, cracky=2, not_cuttable=1},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_claystone", {
		description = S("Stone - Claystone"),
		tiles = {"lib_materials_stone_claystone.png" },
		is_ground_content = true,
		groups = {crumbly=1, cracky=3},
		sounds = default.node_sound_dirt_defaults(),
	})
	minetest.register_node("lib_materials:stone_conglomerate", {
		description = S("Stone - Conglomerate"),
		tiles = {"lib_materials_stone_conglomerate.png" },
		is_ground_content = true,
		sounds = default.node_sound_dirt_defaults(),
		groups = {crumbly=3},
	})
	minetest.register_node("lib_materials:stone_diorite", {  
		description = S("Stone - Diorite"),
		tiles = {"lib_materials_stone_diorite.png" },
		groups = {cracky=3, stone=1}, 
		is_ground_content = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_gabbro", {  
		description = S("Stone - Gabbro"),
		tiles = {"lib_materials_stone_gabbro.png" },
		groups = {cracky=3, stone=1}, 
		is_ground_content = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_gneiss_01", {
		description = S("Stone - Gneiss 01"),
		tiles = {"lib_materials_stone_gneiss_01.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1},
		drop = get_node_drops("lib_materials:stone_gneiss_01", "lib_materials:stone_gneiss_01_cobble"),
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_gneiss_01_block", {
		description = S("Stone - Gneiss 01 Block"),
		tiles = {"lib_materials_stone_gneiss_01_block.png"},
		is_ground_content = false,
		groups = {cracky = 2, stone = 1},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_gneiss_01_brick", {
		description = S("Stone - Gneiss 01 Brick"),
		tiles = {"lib_materials_stone_gneiss_01_brick.png"},
		is_ground_content = false,
		groups = {cracky = 2, stone = 1},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_gneiss_01_cobble", {
		description = S("Stone - Gneiss 01 Cobble"),
		tiles = {"lib_materials_stone_gneiss_01_cobble.png"},
		is_ground_content = false,
		groups = {cracky = 3, stone = 2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_gneiss_02", {  
		description = S("Stone - Gniess 02"),
		tiles = {"lib_materials_stone_gneiss_02.png" },
		groups = {cracky=3, stone=1}, 
		is_ground_content = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_granite_01", {
		description = S("Stone - Granite 01 (Technic)"),
		tiles = { "lib_materials_stone_granite_01.png" },
		is_ground_content = true,
		groups = {cracky=1, granite=1, stone = 1, level = 2},
		drop = 'lib_materials:stone_granite_01',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	}) 
	minetest.register_node("lib_materials:stone_granite_02", {
		description = S("Stone - Granite 02"),
		tiles = {"lib_materials_stone_granite_02.png"},
		groups = {cracky = 3, stone = 1},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_granite_brown", {
		description = S("Stone - Granite Brown"),
		tiles = {"lib_materials_stone_granite_brown.png"},
		groups = {cracky = 3, stone = 1},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_granite_03", {  
		description = S("Stone - Granite 03"),
		tiles = {"lib_materials_stone_granite_03.png" },
		is_ground_content = true,
		sounds = default.node_sound_stone_defaults(),
		groups = {cracky=3, stone=1}, 
	})
	minetest.register_node("lib_materials:stone_laterite", {
		description = S("Stone - Laterite clay"),
		tiles = {"lib_materials_stone_laterite.png" },
		is_ground_content = true,
		sounds = default.node_sound_dirt_defaults(),
		groups = {crumbly=3},
	})
	minetest.register_node("lib_materials:stone_limestone_01", {
		description = S("Stone - Limestone 01"),
		tiles = {"lib_materials_stone_limestone_01.png"},
		groups = {cracky = 3, stone = 1},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_limestone_02", {  
		description = S("Stone - Limestone 02"),
		tiles = {"lib_materials_stone_limestone_02.png" },
		is_ground_content = true,
		sounds = default.node_sound_stone_defaults(),
		groups = {cracky=2},
	})
	minetest.register_node("lib_materials:stone_marble_01", {
		description = S("Stone - Marble 01 (Technic)"),
		tiles = { "lib_materials_stone_marble_01.png" },
		is_ground_content = true,
		groups = {cracky=3, marble=1, stone = 1, level = 2},
		drop = 'lib_materials:stone_marble_01',
		legacy_mineral = true,
		sounds = default.node_sound_stone_defaults(),
	}) 
	minetest.register_node("lib_materials:stone_marble_02", {
		description = S("Stone - Marble 02"),
		tiles = {"lib_materials_stone_marble_02.png"},
		groups = {cracky = 3, stone = 1},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_marble_03", {
		description = S("Stone - Marble 03"),
		tiles = {"lib_materials_stone_marble_03.png"},
		is_ground_content = true,
		groups = {cracky = 3, stone = 1},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_marble_03_block", {
		description = S("Stone - Marble 03 Block"),
		tiles = {"lib_materials_stone_marble_03_block.png"},
		is_ground_content = false,
		groups = {cracky=2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_mudstone", {  
		description = S("Stone - Mudstone"),
		tiles = {"lib_materials_stone_mudstone.png" },
		groups = {cracky=1, crumbly=3}, 
		is_ground_content = true,
		sounds = default.node_sound_dirt_defaults(),
	})
	minetest.register_node("lib_materials:stone_pegmatite", {
		description = S("Stone - Pegmatite"),
		tiles = {"lib_materials_stone_pegmatite.png" },
		groups = {cracky=3, stone=1}, 
		is_ground_content = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_rhyolitic_tuff", {
		description = S("Stone - Rhyolitic Tuff"),
		tiles = {"lib_materials_stone_rhyolitic_tuff.png"},
		is_ground_content = true,
		legacy_mineral = true,
		groups = {cracky = 3, stone = 1},
		drop = {
			max_items = 1,
			items = {
				{-- player get tuff node if he is lucky :)
					items = {'lib_materials:stone_rhyolitic_tuff'},
					rarity = 3,
				},
				{-- player will get rubble with 2/3 chance
					items = {'lib_materials:stone_rhyolitic_tuff_cobble'},
				}

			}
		},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_rhyolitic_tuff_bricks", {
		description = S("Stone - Rhyolitic Tuff Bricks"),
		tiles = {"lib_materials_stone_rhyolitic_tuff_bricks.png"},
		is_ground_content = false,
		groups = {cracky=2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_rhyolitic_tuff_cobble", {
		description = S("Stone - Rhyolitic Tuff Cobble"),
		tiles = {"lib_materials_stone_rhyolitic_tuff_cobble.png"},
		groups = {crumbly = 2, falling_node = 1},
		sounds = default.node_sound_gravel_defaults(),
	})
	minetest.register_node("lib_materials:stone_sandstone_old_red", {
		description = S("Stone - Old Red Sandstone"),
		tiles = {"lib_materials_stone_sandstone_old_red.png"},
		is_ground_content = true,
		drop = "lib_materials:stone_sandstone_old_red_cobble",
		groups = {cracky=2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_sandstone_old_red_block", {
		description = S("Stone - Old Red Sandstone Block"),
		tiles = {"lib_materials_stone_sandstone_old_red_block.png"},
		is_ground_content = false,
		groups = {cracky = 3, stone = 2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_sandstone_old_red_brick", {
		description = S("Stone - Old Red Sandstone Brick"),
		tiles = {"lib_materials_stone_sandstone_old_red_brick.png"},
		is_ground_content = false,
		groups = {cracky = 3, stone = 2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_sandstone_old_red_cobble", {
		description = S("Stone - Old Red Sandstone Cobble"),
		tiles = {"lib_materials_stone_sandstone_old_red_cobble.png"},
		is_ground_content = true,
		groups = {cracky = 3, crumbly=2, stone = 2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_savanna", {
		description = S("Stone - Savannah Stone"),
		tiles = {"lib_materials_stone_savannah.png"},
		groups = {cracky = 3, stone=1},
		drop = 'lib_materials:stone_savanna_cobble',
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_savanna_cobble", {
		description = S("Stone - Savanna Cobble"),
		tiles = {"lib_materials_stone_savanna_cobble.png"},
		groups = {cracky = 3, stone = 1},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_savanna_with_ore_coal", {
		description = S("Stone - Savanna Stone With Coal Ore"),
		tiles = {"lib_materials_stone_savannah_with_ore_coal.png"},
		groups = {cracky = 3, stone = 1, ore=1},
		drop = 'default:coal_lump',
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_savanna_with_ore_iron", {
		description = S("Stone - Savanna Stone With Iron Ore"),
		tiles = {"lib_materials_stone_savannah_with_ore_iron.png"},
		groups = {cracky = 2, stone = 1, ore=1},
		drop = 'default:iron_lump',
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_schist", {
		description = S("Stone - Schist"),
		tiles = {"lib_materials_stone_schist.png"},
		is_ground_content = true,
		groups = {cracky=3},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_serpentine", {
		description = S("Stone - Serpentine"),
		tiles = {"lib_materials_stone_serpentine.png"},
		is_ground_content = true,
		groups = {cracky=3},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_shale", {
		description = S("Stone - Shale"),
		tiles = {"lib_materials_stone_shale.png","lib_materials_stone_shale.png","lib_materials_stone_shale_side.png"},
		is_ground_content = true,
		groups = {crumbly=2,cracky=2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_skarn", {  
		description = S("Stone - Skarn"),
		tiles = {"lib_materials_stone_skarn.png" },
		groups = {cracky=3, stone=1}, 
		is_ground_content = true,
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:stone_slate_01", {
		description = S("Stone - Slate 01"),
		tiles = {"lib_materials_stone_slate_01_top.png","lib_materials_stone_slate_01_top.png","lib_materials_stone_slate_01_side.png"},
		is_ground_content = true,
		drop = 'lib_materials:stone_slate_01_cobble',
		groups = {cracky=2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_slate_01_block", {
		description = S("Stone - Slate 01 Block"),
		tiles = {"lib_materials_stone_slate_01_block.png"},
		is_ground_content = false,
		groups = {cracky=2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_slate_01_brick", {
		description = S("Stone - Slate 01 Brick"),
		tiles = {"lib_materials_stone_slate_01_brick.png"},
		is_ground_content = false,
		groups = {cracky=2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_slate_01_cobble", {
		description = S("Stone - Slate 01 Cobble"),
		tiles = {"lib_materials_stone_slate_01_cobble.png"},
		is_ground_content = false,
		groups = {cracky=2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_slate_01_tile", {
		description = S("Stone - Slate 01 Tile"),
		tiles = {"lib_materials_stone_slate_01_tile.png"},
		is_ground_content = false,
		groups = {cracky=2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_slate_02", {
		description = S("Stone - Slate 02"),
		tiles = {"lib_materials_stone_slate_02.png" },
		is_ground_content = true,
		sounds = default.node_sound_dirt_defaults(),
		groups = {cracky=3},
	})
	minetest.register_node("lib_materials:stone_tuff", {
		description = S("Stone - Tuff"),
		tiles = {"lib_materials_stone_tuff.png"},
		is_ground_content = true,
		legacy_mineral = true,
		groups = {cracky = 3, stone = 1},
		drop = {
			max_items = 1,
			items = {
				{-- player get tuff node if he is lucky :)
					items = {'lib_materials:stone_tuff'},
					rarity = 3,
				},
				{-- player will get rubble with 2/3 chance
					items = {'lib_materials:stone_tuff_cobble'},
				}
			}
		},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_tuff_bricks", {
		description = S("Stone - Tuff Bricks"),
		tiles = {"lib_materials_stone_tuff_bricks.png"},
		is_ground_content = false,
		groups = {cracky=2},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_tuff_bricks_old", {
		description = S("Stone - Tuff Bricks Old"),
		tiles = {"lib_materials_stone_tuff_bricks_old.png"},
		is_ground_content = false,
		groups = {cracky=3},
		sounds = default.node_sound_stone_defaults()
	})
	minetest.register_node("lib_materials:stone_tuff_cobble", {
		description = S("Stone - Tuff Cobble"),
		tiles = {"lib_materials_stone_tuff_cobble.png"},
		groups = {crumbly = 2, falling_node = 1},
		sounds = default.node_sound_gravel_defaults(),
	})
	minetest.register_node("lib_materials:stone_vermiculite", {
		description = S("Stone - Vermiculite"),
		tiles = {"lib_materials_stone_vermiculite.png"},
		groups = {crumbly = 1, cracky = 3},
		sounds = default.node_sound_stone_defaults(),
	})


--Technic Node - 	Granite 01, Marble 01
--Farlands Nodes - 	Granite 02, Granite Brown, Limestone 01, Marble 02, Savanna
--Rocks mod - 	Andesite, Basalt 03, Claystone, Conglomerate, Diorite, Gabbro, Gneiss 02, Granite 03, Laterite, Limestone 02, Mudstone, Pegmatite, Skarn, Slate 02, 
	-- Basalt       Ex/Mafic   hard  same as diorite, byt limit=0.5
	-- Mudstone     Sed        soft  Ocean, beach, river, glaciers
	-- more rock defs
--Darkage Nodes - 	Adobe, Basalt 01, Chalk, Gneiss 01, Marble 03, Old Red Sandstone (ors), Serpentine, Shale, Schist, Slate 01, Tuff, Rhyolitic Tuff
	minetest.register_craftitem("lib_materials:mineral_chalk_powder", {
		description = "Chalk Powder",
		inventory_image = "lib_materials_mineral_chalk_powder.png",
	})
	minetest.register_node("lib_materials:cobble_with_plaster", {
		description = "Stone - Cobblestone with Plaster",
		tiles = {"darkage_chalk.png^(default_cobble.png^[mask:darkage_plaster_mask_D.png)", "darkage_chalk.png^(default_cobble.png^[mask:darkage_plaster_mask_B.png)", 
			"darkage_chalk.png^(default_cobble.png^[mask:darkage_plaster_mask_C.png)", "darkage_chalk.png^(default_cobble.png^[mask:darkage_plaster_mask_A.png)", 
			"default_cobble.png", "darkage_chalk.png"},
		is_ground_content = false,
		paramtype2 = "facedir",
		drop = 'default:cobble',
		groups = {cracky=3, not_cuttable=1},
		sounds = default.node_sound_stone_defaults(),
	})
	minetest.register_node("lib_materials:chalked_bricks_with_plaster", {
		description = "Stone - Chalked Bricks with Plaster",
		tiles = {"darkage_chalk.png^(darkage_chalked_bricks.png^[mask:darkage_plaster_mask_D.png)", "darkage_chalk.png^(darkage_chalked_bricks.png^[mask:darkage_plaster_mask_B.png)", 
			"darkage_chalk.png^(darkage_chalked_bricks.png^[mask:darkage_plaster_mask_C.png)", "darkage_chalk.png^(darkage_chalked_bricks.png^[mask:darkage_plaster_mask_A.png)", 
			"darkage_chalked_bricks.png", "darkage_chalk.png"},
		is_ground_content = false,
		paramtype2 = "facedir",
		drop = 'default:cobble',
		groups = {cracky=3, not_cuttable=1},
		sounds = default.node_sound_stone_defaults(),
	})
-- abm to turn Tuff bricks to old Tuff bricks if water is nearby
-- minetest.register_abm({
	-- nodenames = {"lib_materials:stone_tuff_bricks"},
	-- neighbors = {"group:water"},
	-- interval = 16,
	-- chance = 200,
	-- catch_up = false,
	-- action = function(pos, node)
		-- minetest.set_node(pos, {name = "lib_materials:stone_tuff_bricks_old"})
	-- end
-- })