He pirepire karaehe whenua, he ahua: he porohita marama kore tae, he maeneene me te porotaka, kaore he mirumiru, he poke ranei.
Reiti whakaawhiwhi: reiti whakaawhiwhi ≥ 80%;
Kiato: 2.4-2.6g/cm3;
Taupū Refactive: Nd ≥ 1.50;
Tito: karaihe konutai konupūmā, ihirangi SiO2 > 68%;
Kaha kōpeke: > 1200n;
Mohs pakeke: 6-7.