Java Edition data values

Blocks

This is a list of all the blocks and values used. (Bold entries are not available in Alpha)

dec	hex	Block type
0	00	Air
1	01	Stone
2	02	Grass
3	03	Dirt
4	04	Cobblestone
5	05	Wood
6	06	Sapling (Decorations)
7	07	Adminium (Bedrock)
8	08	Water
9	09	Stationary water
10	0A	Lava
11	0B	Stationary lava
12	0C	Sand
13	0D	Gravel
14	0E	Gold (Ore)
15	0F	Iron (Ore)
16	10	Coal (Ore)
17	11	Tree trunk
18	12	Leaves
19	13	Sponge
20	14	Glass
21	15	Red (Cloth)
22	16	Orange (Cloth)
23	17	Yellow (Cloth)
24	18	Light green (Cloth)
25	19	Green (Cloth)
26	1A	Aqua green (Cloth)
27	1B	Cyan (Cloth)
28	1C	Blue (Cloth)
29	1D	Purple (Cloth)
30	1E	Indigo (Cloth)
31	1F	Violet (Cloth)

dec	hex	Block type
32	20	Magenta (Cloth)
33	21	Pink (Cloth)
34	22	Black (Cloth)
35	23	Gray (Cloth) (Shows up as White cloth in Alpha)
36	24	White (Cloth)
37	25	Yellow flower (Decorations)
38	26	Red rose (Decorations)
39	28	Brown Mushroom
40	27	Red Mushroom
41	29	Gold (Block)
42	2A	Iron (Block)
43	2B	Double Stair
44	2C	Stair
45	2D	Brick
46	2E	TNT
47	2F	Bookcase
48	30	Mossy Cobblestone
49	31	Obsidian
50	32	Torch
51	33	Fire block
52	34	Infinite Water Source (Shows up as Mob Spawner in Alpha)
53	35	Infinite Lava Source (Shows up as Wooden Stair in Alpha)
54	36	Chest
55	37	Gear
56	38	Diamond gem
57	39	Diamond (block)
58	3A	Crafting table
59	3B	Crops
60	3C	Soil
61	3D	Furnace
62	3E	Burning Furnace
63	3F	Blank Signs

dec	hex	Block type
64	40	Bottom Half Doors
65	41	Ladder
66	42	Minecart Rail
67	43	Cobblestone Stair
68	44	Sort of "Wall Sign"
69	45	Lever
70	46	Cobblestone Pressure Plate
71	47	Iron Door, bottom half
72	48	Wooden Pressure Plate
73	49	Redstone Ore
74	4A	Redstone Ore
75	4B	Redstone torch ("off" state)
76	4C	Redstone torch ("on" state)
77	4D	Stone Button

Tools

The following list are tools etc, they are prefixed by hex 0x01 instead of 0x00 in the save file.

dec	hex	Item
0	00	Iron Spade
1	01	Iron Pickaxe
2	02	Iron Axe
3	03	Flint and Steel
4	04	Apple (Cures 2 hearts)
5	05	Bow
6	06	Arrow
7	07	Coal
8	08	Diamond
9	09	Iron Bar
10	0A	Gold Bar
11	0B	Iron Sword
12	0C	Wooden Sword
13	0D	Wooden Spade
14	0E	Wooden Pickaxe
15	0F	Wooden Axe
16	10	Stone Sword
17	11	Stone Spade
18	12	Stone Pickaxe
19	13	Stone Axe
20	14	Diamond Sword
21	15	Diamond Spade
22	16	Diamond Pickaxe
23	17	Diamond Axe
24	18	Stick
25	19	Bowl (Empty)
26	1A	Bowl of Soup
27	1B	Gold Sword
28	1C	Gold Spade
29	1D	Gold Pickaxe
30	1E	Gold Axe
31	1F	Bowstring

dec	hex	Item
32	20	Feather
33	21	Gunpowder
34	22	Wooden Hoe
35	23	Stone Hoe
36	24	Iron Hoe
37	25	Gold Hoe
38	26	Diamond Hoe
39	27	Seeds
40	28	Wheat
41	29	Bread
42	2A	Leather Helmet
43	2B	Leather Chestplate
44	2C	Leather Pants
45	2D	Leather Boots
46	2E	Chainmail Helmet
47	2F	Chainmail Chestplate
48	30	Chainmail Pants
49	31	Chainmail Boots
50	32	Iron Helmet
51	33	Iron Chestplate
52	34	Iron Pants
53	35	Iron Boots
54	36	Diamond Helmet
55	37	Diamond Chestplate
56	38	Diamond Pants
57	39	Diamond Boots
58	3A	Gold Helmet
59	3B	Gold Chestplate
60	3C	Gold Pants
61	3D	Gold Boots
62	3E	Flint
63	3F	Pork

dec	hex	Item
64	40	Grilled Pork
65	41	Paintings
69	45	Empty Bucket
70	46	Water-filled Bucket
71	47	Lava-filled Bucket
72	48	Minecart
73	49	Saddle
75	4B	Redstone
76	52	Metal Door

Data

Meta data. Each value here precedes a single hex digit used for lighting.

Block	dec	hex	Use
Farmland	0-15	0-F	Determines wetness value
Crops	0-7	0-7	Determines crop size
Torch/Gear	0-3	0-3	Determines torch direction