ActuallyAdditions/src/main/resources/assets/actuallyadditions/models/block/black_quartz_pillar.json

{
  "parent": "minecraft:block/cube_column",
  "textures": {
    "end": "actuallyadditions:block/black_quartz_pillar_top",
    "side": "actuallyadditions:block/black_quartz_pillar"
  }
}