Dark Prismarine Slab is a decorative block crafted from Dark Prismarine, which is itself made by surrounding an Ink Sac with Prismarine Shards. Half the height of a full block, it allows for more intricate designs and can be placed horizontally against the top or bottom of other blocks. Players often use it for its aesthetic appeal in building underwater structures and themes, capitalizing on its dark, tiled texture that evokes a sense of the deep ocean.
This item has no numerical item ID, therefore you must use the item ID to spawn the item. Numerical item IDs were removed in Minecraft version 1.13.
The item id for Dark Prismarine Slab is minecraft:dark_prismarine_slab
The item ID for Dark Prismarine Slab is minecraft:dark_prismarine_slab
This is the spawn command to give yourself Dark Prismarine Slab in Minecraft which includes the Minecraft /give command. If you are using the Essentials plugin you will need to use /minecraft:give instead of /give