Lucky Blocks cant be generated by the mapgen; they are only craftable.
Craft : 8 iron ingots around a dirt block.
15 Apples (chance = 0.5)
24 Iron Ingots (chance = 0.1)
12 Diamonds (chance = 0.2)
4 Enchanted Golden Apples (chance = 0.01)
12 Baguettes (chance = 0.3)
5 Purple Wool (chance = 0.3)
10 Emeralds (chance = 0.2)
3 Cooked Mutton (chance = 0.4)
2 Brown Glazed TerraCotta (chance = 0.4)
2 Hay Block (chance = 0.2)
Music Disk (Mellohi) (chance = 0.3)
Flint and Steel (chance = 0.3)
16 Ender Pearls (chance = 0.4)
Craft : 8 iron ingots around a Diamond
4 Diamonds (chance = 0.4 )
1 Nephrite Block (chance = 0.1)
1 Enderite Block (chance = 0.1)
10 Obsidian (chance = 0.3)
12 Enchanted Golden Apple (chance = 0.05)
2 Nightite Ingots (chance = 0.005)
2 Wind Charges (chance = 0.1)
1 Orange Shulker (chance = 0.2)
2 Banners (chance = 0.3)
1 Anvil (chance = 0.3)
3 Lapis (chance = 0.6)
6 Blaze Rods (chance = 0.3)
1 Netherite Axe (chance = 0.2)
1 Netherite Pickaxe (chance = 0.2)
1 Netherite Sword (chance = 0.1)
Craft : 8 iron ingots around a Netherite ingot.
4 Diamond Blocks (chance = 0.5)
24 Enchanted Golden Apple (chance = 0.1)
Totem Of Undying (chance = 0.2)
2 Obsidian (chance = 0.2)
2 Armor Trims (Silence) (chance = 0.3)
64 FireWorks (chance = 0.2)
1 Omnoius Bottle (chance = 0.2)
Craft : No craft
Enderite Axe (chance = 0.1)
Nephrite Axe (chance = 0.1)
2 Ender Chests (chance = 0.3)
2 Wither Skeleton Heads (chance = 0.1)
1 Heavy Core (chance = 0.05)
1 Nether Star (chance = 0.1)
1 Breeze Rod (chance = 0.4)
3 Mixed Nightite Ingots (chance = 0.1)