[
  {
    "item" : "oreQuartzBlack",
    "color" : 15,
    "rarity" : [
      {
        "whitelist": "",
        "blacklist": "minecraft:hell, minecraft:sky",
        "depth_min": 0,
        "depth_max": 255,
        "weight": 6
      }
    ]
  }
]