data/data/extra_utilities/items/octuple_compressed_cobblestone/item.json

{
    "description": "Octuple Compressed Cobblestone is a way to both store more cobblestone in less space, and to create a harder and more sturdy form of cobblestone.  It is the most compressed form of cobble stone, containing the equivalent of 43, 046, 721 cobblestone in every block."
}