Ibiranga: Ingano ya karuboni ihoraho cyane, ivu rike, amashanyarazi n'ubushyuhe byinshi. Sulfure nkeya, imyenge mike kandi ihindagurika buhoro. Uduce twumye, dusukuye kandi turinganiye
Ingano: 0.2–2mm, 1–5mm, 3–8mm, 5-15mm cyangwa hakurikijwe ibyo umukiriya akeneye.
Gupakira: mu gikapu gito cya 25kg, igikapu kinini cya 1m, cyangwa bitewe n'ibyo umuguzi akeneye.
