Iyo 17,000-carat opal yakawanikwa muSouth Australia muna 1956 ndiyo hombe uye inodhura zvakanyanya pasi rose kusvika parizvino.Iyo opal yakanzi "Olympic Australis" kupemberera Melbourne Olympics gore iroro.uye anga ari muchimiro chakakwana muSydney kubvira 1997.
Nguva yekutumira: Kubvumbi-19-2022