Single crystal sapphire chinhu chine kuomarara kwakanyanya, yakanakisa kugadzikana kwekemikari uye kujeka kwemaziso pamusoro pehupamhi hwewavelength. Nekuda kwemabhenefiti aya, inoshandiswa zvakanyanya mumaindasitiri akasiyana anosanganisira hutano, mainjiniya, mauto ekupa, kubhururuka nendege, optics.
Nekukura kwemadhayamita mahombe ecrystal sapphire, nzira dzeKyropoulos (Ky) neCzochralski (Cz) dzinonyanya kushandiswa. Iyo Cz nzira inoshandiswa zvakanyanya imwe kristaro kukura nzira umo alumina inonyungudutswa mucrucible uye mbeu inodhonzwa kumusoro; mhodzi inotenderedzwa panguva imwe chete mushure mekubata simbi yakanyungudutswa, uye iyo nzira yeKy inonyanya kushandiswa kune imwechete kristaro kukura kwehukuru dhayamita sapphire. Kunyange zvazvo vira rayo rekukura rakafanana neCz nzira, kristaro yembeu haitendereri mushure mekusangana nealumina yakanyungudutswa, asi zvishoma nezvishoma inoderedza tembiricha yekupisa kuti ibvumire kristaro imwe chete kukura ichidzika pasi kubva pakristaro yembeu. Tinogona kushandisa yakakwira tembiricha inodzivirira zvigadzirwa muchoto chesafire, senge tungsten crucible, molybdenum crucible, tungsten uye molybdenum heat shield, tungsten heat element uye zvimwe zvakakosha-shape tungsten uye molybdenum zvigadzirwa.
