Blocks

Blocks are the usually cuboid shapes that the Minecraft world is made of. Blocks only have 2 properties: An 8-bit ID and a 4-bit metadata value.

Listing

Here is a comprehensive listing of all blocks.

Value	Name	In-game Name	Metadata use
0	Air
1	Stone	Stone
2	Grass	Grass
3	Dirt	Dirt
4	Cobblestone	Cobblestone
5	Planks	Wooden Planks
6	Sapling	Sapling	Wood Type
7	Bedrock	Bedrock
8	Water (Flowing)	Water	Liquid height
9	Water (Still)	Water	Liquid height
10	Lava (Flowing)	Lava	Liquid height
11	Lava (Still)	Lava	Liquid height
12	Sand	Sand
13	Gravel	Gravel
14	Gold Ore	Gold Ore
15	Iron Ore	Iron Ore
16	Coal Ore	Coal Ore
17	Log	Wood	Wood Type
18	Leaves	Leaves	Leaf Type
19	Sponge	Sponge
20	Glass	Glass
21	Lapis Lazuli Ore	Lapis Lazuli Ore
22	Lapis Lazuli Block	Lapis Lazuli Block
23	Dispenser	Dispenser	Direction
24	Sandstone	Sandstone
25	Noteblock	Noteblock
26	Bed	Bed	Top/Bottom and Direction
27	Powered Rail	Powered Rail	Direction
28	Detector Rail	Detector Rail	Direction
29	Sticky Piston	Sticky Piston	Direction and State
30	Cobweb	Cobweb
31	Tallgrass		Shrub 0, Grass 1, Fern 2
32	Deadbush
33	Piston	Piston	Direction and State
34	Piston Head		Direction
35	Wool		Color
36
37	Dandelion	Flower
38	Rose	Rose
39	Brown Mushroom	Mushroom
40	Red Mushroom	Mushroom
41	Gold Block	Block of Gold
42	Iron Block	Block of Iron
43	Double Slab		Stone 0, Sandstone 1, Wood 2, Cobblestone 3
44	Slab	Stone Slab, Sandstone Slab, Wooden Slab, Stone Slab	Stone 0, Sandstone 1, Wood 2, Cobblestone 3
45	Bricks	Bricks
46	TNT	TNT
47	Bookshelf	Bookshelf
48	Mossy Cobblestone	Moss Stone
49	Obsidian	Obsidian
50	Torch	Torch	Direction
51	Fire	Fire
52	Monster Spawner	Monster Spawner
53	Wooden Stairs	Wooden Stairs	Direction
54	Chest	Chest
55	Redstone	Redstone	Power Level
56	Diamond Ore	Diamond Ore
57	Diamond Block	Block of Diamond
58	Crafting Table	Crafting Table
59	Wheat	Crops	Growth Stage (0-7)
60	Farmland	Farmland	>0 if wet
61	Furnace	Furnace	Direction
62	Furnace (Lit)	Furnace	Direction
63	Sign (Ground)	Sign	Direction
64	Wooden Door	Wooden Door
65	Ladder	Ladder	Direction
66	Rail	Rail	Direction
67	Cobblestone Stairs	Stone Stairs	Direction
68	Sign (Wall)	Sign	Direction
69	Lever	Lever	Toggled & Direction
70	Stone Pressure Plate	Pressure Plate	Toggled
71	Iron Door	Iron Door
72	Wooden Pressure Plate	Pressure Plate	Toggled
73	Redstone Ore (Off)	Redstone Ore
74	Redstone Ore (On)	Redstone Ore
75	Redstone Torch (Off)	Redstone Torch	Direction
76	Redstone Torch (On)	Redstone Torch	Direction
77	Stone Button	Button	Toggled & Direction
78	Snow Layer	Snow
79	Ice	Ice
80	Snow Block	Snow
81	Cactus	Cactus
82	Clay	Clay
83	Sugarcane	Sugar cane
84	Jukebox	Jukebox
85	Fence	Fence
86	Pumpkin	Pumpkin	Direction
87	Netherrack	Netherrack
88	Soulsand	Soul Sand
89	Glowstone	Glowstone
90	Nether Portal	Portal
91	Pumpkin (Lit)	Jack 'o' Lantern	Direction
92	Cake	Cake
93	Redstone Repeater (Off)		Direction
94	Redstone Repeater (On)		Direction
95	Locked Chest	Locked chest
96	Trapdoor	Trapdoor	Toggled & Direction

Metadata

Many blocks make use of the 4-bit metadata values that they have access to. Often times these are used for indicating their direction. Sometimes they're used for if they're activated, open or if they're a variety of a share base-block, such as the different wool colors or logs.

Liquids

Liquids indicate their level with their metadata. Generally, the further away they are from a water source, the lower their level gets.

Wood

All wood or tree-related blocks have related values and behaviors.

Saplings

Logs have 3 distinct values.

Value	Color
0	Oak
1	Spruce
2	Birch

Value 3 also shows up as oak, but is unobtainable under normal circumstances.

The upper 2-bits are used to indicate the age of the sapling.

Logs

Logs have 3 distinct values.

Value	Color
0	Oak
1	Spruce
2	Birch

Any other value will appear as oak.

Leaves

Leaves have 3/4 distinct values. Only oak is biome-colored.

Value	Color
0	Oak
1	Spruce
2	Birch
4	Oak (spruce colors)

The values after this simply follow the same pattern.

Dispenser/Furnace

Value	Color
0	None (Invalid)
1	None (Invalid)
2	East
3	West
4	North
5	South
6-15	None (Invalid)

Wool

Wool exists in 16 distinct colors.

Value	Color
0	#FFFFFF White
1	#FC933F Orange
2	#DC56E7 Magenta
3	#77A0F2 Light Blue
4	#DFCF21 Yellow
5	#45D938 Lime
6	#F697B2 Pink
7	#4D4D4D Gray
8	#B6BEBE Light Gray
9	#2F86AC Cyan
10	#953FE1 Purple
11	#2D3CB1 Blue
12	#633C21 Brown
13	#41591C Green
14	#BC3530 Red
15	#201B1B Black

NOTE

The color swatches were estimated by dividing the colored wool textures with the white one, then averaging the resulting images. This gets us decently close to the original colors that were used before the wool texture was applied ontop.

Pistons

Pistons and Sticky pistons use their metadata values to indicate both their direction and state. The lower 3-Bits indicate the pistons direction, while the remaining bit indicates whether the piston is retracted 0 or extended 1.

Value	Direction
0	Down
1	Up
2	East
3	West
4	North
5	South
6	All (Invalid)
7	All (Invalid)

Piston Head

The piston head uses it's metadata like the pistons, though with one difference. The last bit is used to indicate whether the piston head is normal 0 or sticky 1.

Value	Direction
0	Down
1	Up
2	East
3	West
4	North
5	South

Values 6 and 7 do not render.

Torches/Levers

The "facing" direction of a torch or lever is determined by the direction it's sticking out towards.

Value	Direction
0	Up
1	South
2	North
3	West
4	East
5-15	Up (Invalid)

Stairs

The "facing" direction is determined where the missing quarter is.

Value	Direction
0	North
1	South
2	East
3	West

Values 4 to 15 do not render.

Signs

Grounded

The "facing" direction is determined by which way the text would go. The angles are given relative to West.

Value	Direction	Angle
0	West	0°
1	West-North-West	22.5°
2	North-West	45°
3	North-North-West	67.5°
4	North	90°
5	North-North-East	112.5°
6	North-East	135°
7	East-North-East	157.5°
8	East	180°
8	East-South-East	202.5°
10	South-East	225°
11	South-South-East	247.5°
12	South	270°
13	South-South-West	292.5°
14	South-West	315°
15	West-South-West	337.5°