Buy Natural Original Opal ( (Doodhiya patthar) ) for sale online 3.69 carats (4.05 Ratti). The Stone origin ( where it is mined ) is Australia . Opal is a white coloured semi-precious gemstone of the silicate mineral family. Opal works miraculously for the ascendant's of Venus (Shukra) Planet. Natural Opal can be worn by people seeking benefits in Career, Marriag, Health, Luxury. The major sources of Opal are Australia & Ethiopia.