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    "overlay": "undergroundbiomes:blocks/overlays/mysticalworld/amethyst",
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    "alphaOverlay": false,
    "oreDirectories": []
  },
  {
    "internalOreName": "mysticalworld:copper_ore",
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    "overlay": "undergroundbiomes:blocks/overlays/mysticalworld/copper",
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    "alphaOverlay": false,
    "oreDirectories": []
  },
  {
    "internalOreName": "mysticalworld:silver_ore",
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    "overlay": "undergroundbiomes:blocks/overlays/mysticalworld/silver",
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    "oreDirectories": []
  }
]