ʻO wai ka daimana ikaika a i ʻole tungsten?
Ua helu ʻia ka metala Tungsten ma kahi o ʻeiwa ma ka pālākiō Mohs o ka paʻakikī. ʻO ke daimana, ʻo ia ka mea paʻakikī loa ma ka honua a ʻo ka mea wale nō e hiki ke ʻoki i ka tungsten, ua helu ʻia ma kahi 10.