minetest.register_ore({
    ore_type = "scatter",
    ore = "fl_terrain:mithite_in_stone",
    wherein = "mapgen_stone",
    clust_scarcity = 30*30*30,
    clust_num_ores = 1,
    clust_size = 1,
    y_min = -32,
    y_max = 32,
})