Theophrastus naPliny Mukuru vakanga vaenzanisa kuomarara kwezvicherwa zvavaiziva munyika yekare, kusanganisira madhaimani uye quartz. Vaiziva kuti madhaimani aigona kukwenya quartz, zvichiratidza kuti yakanga yakaoma. Izvi zvakava hwaro hwehuremu hwakaomeswa hwakagadzirwa naMohs. Mineral yakaoma, madhaimani yakapihwa kukosha kwe10 uye zvicherwa zvakapfava zvakaita setalk zvakapiwa kukosha kwakaderera kwazvo kwe1 (kubatana). Mamwe zvicherwa zvakapihwa kukosha kwepakati, zvichienderana nekugona kwavo kukwenya imwe mineral muchikero.
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