{
  "breakingPower": 7,
  "blockStrength": 3000,
  "name": "Opal Gemstone",
  "baseDrop": "ROUGH_OPAL_GEM",
  "blocks189": [
    {
      "itemId": "minecraft:stained_glass",
      "damage": 0,
      "onlyIn": [
        "mineshaft",
        "crimson_isle"
      ]
    },
    {
      "itemId": "minecraft:stained_glass_pane",
      "damage": 0,
      "onlyIn": [
        "mineshaft",
        "crimson_isle"
      ]
    }
  ]
}