The machinery in the quarry contains Caterpillar, Kobelco, Komatsu and Tamrock drills. At the current time, There may be between eight to 10 personnel Doing the job in the quarry. These feldspar-wealthy sandstones originate from swiftly eroding granitic and metamorphic terrains in which chemical weathering is subordinate to physical weathering. https://simonvdjpu.wssblogs.com/31090405/sandstone-retaining-wall-blocks-no-further-a-mystery