{
  "breakingPower": 9,
  "blockStrength": 5200,
  "name": "Onyx Gemstone",
  "baseDrop": "ROUGH_ONYX_GEM",
  "blocks189": [
    {
      "itemId": "minecraft:stained_glass",
      "damage": 15,
      "onlyIn": [
        "mineshaft",
        "mining_3"
      ]
    },
    {
      "itemId": "minecraft:stained_glass_pane",
      "damage": 15,
      "onlyIn": [
        "mineshaft",
        "mining_3"
      ]
    }
  ]
}