並前往https://prigarden.wordpress.com/2014/03/22/%E4%BD%95%E8%AC%82%E8%8E%AB%E6%B0%8F%E7%A1%AC%E5%BA%A6%E8%A1%A8%E6%91%A9%E6%B0%8F%E7%A1%AC%E5%BA%A6%E8%A1%A8-mohs-hardness-scale%EF%BC%9F/