Opal Black Opal, Boulder Opal and White Opal deposits in Australia
Australia’s Great Artesian Basin (GAB) hosts widespread deposits of Opal, and continue to be the major source of high-quality gem opal for the international coloured gemstone market. Opal mining in the GAB has produce billions of dollars’ worth of exquisite gems, including light opal mainly found in the opal fields of South Australia, Boulder Opal minded in central Queensland, and black Opal mainly mined around the town of Lightning Ridge
Opal in GAB deposits comprises both common potch and rare precious opal, and occurs as replacements of fossils as in filling in ironstone concretions and ferrierites and as tectonically-generated fault and fracture-controlled opal veins. Owing to the numerous varieties of opal, which occur in the sedimentary host rocks the GAB, a number of contrasting theories have been postulated over the years to try to explain the formation of these important coloured gemstone deposits.
Where to buy Opals in Sydney?
You can find the beautiful Australian Solid Opals in our Sydney store. We are Australia’s largest retailer of designer Black Opal, Boulder Opal and Crystal Opal jewellery. We only carry solid Opals and do not sell doublets or triplets. We have the finest quality Opals at the most competitive price. We have unset Opal stones, Sterling Silver Opal jewellery, as well as 18k gold and platinum Opal jewellery. We have the largest collection of Opal earrings, Opal rings, Opal pendants, Opal bangles and Opal bracelets in Sydney. We are also licensed Duty Free.