minetest.register_ore({
ore_type = 'sheet',
ore = 'survival:stone_with_salt',
wherein = 'default:stone',
clust_size = 6,
y_min = -3100,
y_max = 200,
noise_params = {offset=0, scale=7, spread={x=250, y=250, z=250}, seed=23, octaves=6, persist=0.70}
})