Izinto ezityumkileyo zingamalahle, ityiwa, i-chabk, i-gypsum, izitena kunye neethayile, iphepha okanye i-pimestos, njl njl. Ukongeza, umtyholo wesando awunakusetyenziswa kuphela kwimigca yokuvelisa, kodwa nakumgca wokunqongophala endaweni ye-cone clors.
