... want to reduce their rocks to workable sizes 1′,1-1/4′,1-3/8′are for splitting large rocks. ... large and irregular stone blocks. 2. The Characteristics 1.) Mainly rely on manpower, therefore its labor intensive ... mining where lack of power, water supply. 4.) Suitable for quarrying layered ores which are either ... or gently inclined, have layer depth around 1.5m. 5.) Can apply desegregation and separation ...