from previous-

--there  are  so many  stories  of  cheats  who claim  to  double  the  gold  of  the  customers  , who  later  find  their  gold  is  gone  and  they  are  left  with  chemically  treated  metal  that  shines  like  gold,  rayaz  began  to  experiment  with  chemicals  after  school in his  home  lab  he  kept  exclusively  for  this  purpose, one  day  he  found  the  solution he  had  made   cracked  one  piece  of  glass the  other  stronger  piece  had  changed  to  diamond