Chrysolite
one of the precious stones in the foundation of the heavenly Jerusalem. Re 21:20 It has been already stated [BERYL] that the chrysolite of the ancients is identical with the modern oriental topaz the tarhish of the Hebrew Bible.
Bibliography Information Smith, William, Dr "Definition for 'Chrysolite' Smiths Bible Dictionary". bible-history.com - Smiths; 1901.