Ibikoresho: Tungsten nziza na tungsten biremereye cyane
Gusaba: Imitako, imitako, uburemere buringaniye, intego, inganda za gisirikare, nibindi
Imiterere: cube, silinderi, guhagarika, granule nibindi
Bisanzwe: ASTM B760, GB-T 3875, ASTM B777
Gutunganya: Kuzunguruka, guhimba, gucumura
Ubuso: Igipolonye, isuku ya alkali