local function on_use_stone(itemstack, player, pointed_thing)
    local meta = itemstack:get_meta()
    meta:set_string("description", "NEW DESCRIPTION")
    return itemstack
end
minetest.register_node("test_strange:stone", {
    description = "STONE",
    tiles = {"default_stone.png"},
    is_ground_content = true,
    groups = {cracky=3, stone=1},
    drop = 'default:cobble',
    legacy_mineral = true,
    on_use = on_use_stone,
})