M'zaka zaposachedwa, ndikukula kwachangu kwa mafakitale akufa ndi nkhungu, zida za graphite, njira zatsopano komanso kuchuluka kwa mafakitale akufa ndi nkhungu kumakhudza msika wakufa ndi nkhungu. Graphite pang'onopang'ono yakhala chinthu chomwe chimakondedwa pakupanga nkhungu ndi zabwino zake zakuthupi ndi zamankhwala.