{
    "type":"immersivegeology:gravityseparator",
    "byproduct":{"item":"tfcorewashing:chunks_copper"},
    "byproduct_chance":0.85,
    "input":{"item":"tfcorewashing:rocky_chunks_copper"},
    "result":{"item":"tfcorewashing:chunks_copper"},
    "time":60,
    "water":100
}