minecraft-assets/assets/minecraft/recipes/quartz_block.json

{
  "type": "crafting_shaped",
  "pattern": [
    "##",
    "##"
  ],
  "key": {
    "#": {
      "item": "minecraft:quartz"
    }
  },
  "result": {
    "item": "minecraft:quartz_block",
    "data": 0
  }
}