I'm german, sorry for my english:
Ores can probably headline only stones and Netherrack. However, my ore must headline zb sand or Prismarine. I looked in the DefaultBiomeFeatures with the emeralds, but this also does not function.
For example, This:
Biome.createDecoratedFeature(Feature.ORE, new OreFeatureConfig(OreFeatureConfig.FillerBlockType.NATURAL_STONE, Blocks.LAPIS_ORE.getDefaultState(), 7), Placement.COUNT_DEPTH_AVERAGE, new DepthAverageConfig(1, 16, 16)));
must become anyhow him here:
Biome.createDecoratedFeature(Feature.ORE, new OreFeatureConfig(---> here sand or prismarine block <---, Blocks.LAPIS_ORE.getDefaultState(), 7), Placement.COUNT_DEPTH_AVERAGE, new DepthAverageConfig(1, 16, 16)));
Thanks for help