Tube ya safire e bentšitsoeng ke karolo e sebetsang hantle e entsoeng ka monocrystalline aluminium oxide (Al₂O₃). Ka kgolo e tsoetseng pele ya kristale le ho bentsha ka nepo ka mekhahlelo e mengata, e fana ka motswako wa ponaletso ya optical, ho tiea ha mechini, le mamello ya mocheso eo thepa e fokolang e ka e bapisang. Mabota a boreleli haholo maboteng a ka hare le a ka ntle a dumella phetiso e ntle ya lesedi le tshilafatso e fokolang, e leng se etsang hore ditube tsa safire e be tsa bohlokwa haholo ditshebedisong tsa optical, semiconductor, analytical, le industrial.