minecraft-assets/data/minecraft/recipes/spyglass.json

{
  "type": "minecraft:crafting_shaped",
  "pattern": [
    " # ",
    " X ",
    " X "
  ],
  "key": {
    "#": {
      "item": "minecraft:amethyst_shard"
    },
    "X": {
      "item": "minecraft:copper_ingot"
    }
  },
  "result": {
    "item": "minecraft:spyglass"
  }
}