Urutonde rwateguwe neza kandi ruteranijwegranite tileBirashobora gukoreshwa hasi, kurukuta, ndetse no hanze ya pave ya porogaramu, bigatuma ahantu harimbishijwe hagaragara.

Ibicuruzwa byuruhererekane rwa granite bifite amabara arenga 20 yo guhitamo, nkumweru, umuhondo, umutuku, igikara nicyatsi gikoreshwa cyane mubutaka, intambwe nurukuta.Imiterere yacyo nziza, amabara asebanya nuburyo bwiza cyane ni urumuri rwa granite.Akamaro k'amabuye yakozwe na granite afite ibyiza byo kurwanya ruswa, kurwanya abrasion ikomeye no kuramba.