In a vibratory tumbler, most elements having a Mohs hardness of 7 or considerably less demand just two times to attain a brilliant polish (Mohs 8 can demand a few to four days). Baada ya kuhitimu shule ya Msingi mwaka 2002 na kutaka kuanza masomo ya Secondary mwaka 2003 mama yake alimwambia aacha