Formation of Opal – Opal is formed from a combination of silicon dioxide and water. When water flows down through the earth, it deposits silica from sandstone and carries this silica-rich solution into cracks and voids, caused by natural faults or decomposing fossils. As the water evaporates, it leaves behind a silica deposit. Thus nature gifts us this gemstone.
Scientific name – Hydrated Silica
Chemical composition – Hydrous silicate di-oxide SiO2·nH2O
Luster – Subvitreous to waxy
Fracture – Conchoidal to uneven
Hardness – 5.5–6 (Moh scale)
Specific gravity – 2.15
Refractive index – 1.45
Crystal habit – Irregular veins, in masses, in nodules
Color – The best color for a natural opal is Colorless, White, Yellow, Red, Orange, Green, Brown, Black, Blue, and Pink.
Best origin – Opal is the national gemstone of Australia. More than 90% of the world’s precious opals come from Australia, and the rest can be found in other parts of the world such as Mexico, Brazil, Indonesia, the Czech Republic, Ethiopia, and the USA. Opals from Mexico (called “Mexican Opal”) have more water and is extremely transparent.
Shape – The shapes of opal are usually round, and oval.
Planet – It represents the planet, Venus.
Zodiac sign – Zodiac signs Taurus & Libra should wear an Opal. It’s also highly recommended to those, who have Mahadasha of Venus in the horoscope. Opal is very beneficial for people suffering from infertility, sexual disorders, Libido, and impotency. Before wearing opal you should consult first and then wear. Opal gemstone is a very powerful and strong gemstone but it does not suit everyone. For Free consultation, you can also call us on 09810800550.
Value of Opal – The cost of natural opal varies depending on its color, clarity, size, and overall quality. It may vary from Rs. 900/- per carat to Rs. 5,000/- per Carat as per its quality.