ActuallyAdditions/src/generated/resources/data/actuallyadditions/recipes/placer.json

{
  "type": "minecraft:crafting_shaped",
  "category": "misc",
  "key": {
    "C": {
      "tag": "forge:cobblestone"
    },
    "P": {
      "item": "actuallyadditions:palis_crystal"
    },
    "X": {
      "item": "actuallyadditions:basic_coil"
    }
  },
  "pattern": [
    "CCC",
    "CXP",
    "CCC"
  ],
  "result": {
    "item": "actuallyadditions:placer"
  }
}