Mohs scale of mineral hardness testing the resilience of certain flat panel display components (such as cover glass for LCDs or encapsulation for OLEDs). The Mohs scale of mineral hardness is based on the ability of one natural sample of mineral to scratch another mineral visibly. The samples of matter used by Mohs are all different minerals. Minerals are chemically pure solids found in nature. Rocks are made up of one or more minerals. As the hardest known naturally occurring substance when the scale was designed, diamonds are at the top of the scale. The hardness of a material is measured against the scale by
Orient Hotel, The Rocks of The Rocks under SCRA erupted in 1973 in organised community protests supported by the NSW Branch of the Builders Labourers' Federation. By 1975, SCRA's planning outlook had evolved to take into consideration cultural, social and historical values, but large scale developments continued. The Orient Hotel with its corner location and historic street presentation has contributed to the public's association of The Rocks with a unique historic neighbourhood. Around 1976, a company named Rocks Hotels Pty Ltd. took on the management of the hotel and in 1979 extensive alterations valued at $120,000 were completed to provide street facades approximating its