Opal is a white coloured gemstone. This gemstone reflects all the colours of the spectrum. It also reflects the mood of the wearer. It belongs to the Silicates Quartz group. There are many types of opal found in this world. The three main types of opal include Fire Opal, Boulder Opal, Common Opal. As the lord of this gemstone is Venus, it is advised by the astrologers to wear it on Friday morning. This stone is best suited for Taurus and Libra. The maximum benefit of this stone can be extracted by wearing it in the ring finger of the right hand. The mantra to be enchanted before wearing this stone is - ‘Om Draam Dreem Droum Sah Shukraaye Namah’. This gemstone helps to reduce eye related problems of its wearer. This stone also helps to solve marriage related problems. It also helps to improve the immunity system and creative skills of its wearer.