Imishini yokusika yamatshe ibamba iqhaza elibalulekile ekukhiqizeni nasekucubungula izinto ezahlukahlukene zamatshe, kufaka phakathi igranite, imabula, ne-limestone. Lawa mathuluzi akhethekile enziwe ukuletha ukusikeka okuqondile nokuqeda, ukwenza kubalulekile kochwepheshe embonini yamatshe. Kulesi sihloko, sizohlola ukusebenza, izinhlobo, nezinzuzo zemishini yokusika yamatshe,