ActuallyAdditions/src/main/resources/assets/actuallyadditions/blockstates/blockCrystal.json

{
  "variants": {
    "meta=0": { "model": "actuallyadditions:blockCrystalRed" },
    "meta=1": { "model": "actuallyadditions:blockCrystalBlue" },
    "meta=2": { "model": "actuallyadditions:blockCrystalLightBlue" },
    "meta=3": { "model": "actuallyadditions:blockCrystalBlack" },
    "meta=4": { "model": "actuallyadditions:blockCrystalGreen" },
    "meta=5": { "model": "actuallyadditions:blockCrystalWhite" }
  }
}