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Lightning Ridge is a small outback town in north-western New South Wales, Australia. Part of Walgett Shire, Lightning Ridge is situated near the southern border of Queensland, about 6 km (4 mi) east of the Castlereagh Highway. The Lightning Ridge area is a centre of the mining of black opal and other opal gemstones.
The Griman Creek Formation is a geological formation in northern New South Wales and southern Queensland, Australia whose strata date back to the Albian-Cenomanian stages of the mid-Cretaceous. [1] It is most notable being a major source of opal, found near the town of Lightning Ridge, New South Wales. Alongside the opal opalised fossils are ...
Weewarrasaurus is a genus of ornithopod dinosaur from the Late Cretaceous of the Griman Creek Formation near Lightning Ridge, in New South Wales, Australia. The type and only species is W. pobeni, known from the holotype, an isolated dentary preserved in opal, as well as a secondary referred dentary. It is thought to have co-existed with ...
It was found at Lightning Ridge, New South Wales, Australia, by the Lunatic Hill Mining Syndicate. It weighs 1,982.5 carats (396.5 g; 13.99 oz) and is about the size of a man's fist. [ 1 ] The Halley's Comet Opal is a very fine specimen, with few flaws or blemishes and a large green and orange 1.6 cm (0.63 in) thick color bar which goes through ...
Andamooka in South Australia is also a major producer of matrix opal, crystal opal, and black opal. Another Australian town, Lightning Ridge in New South Wales, is the main source of black opal, opal containing a predominantly dark background (dark gray to blue-black displaying the play of color), collected from the Griman Creek Formation. [30]
The Shire is divided between the agricultural areas (producing wool, cattle, wheat and cotton), which are near the Barwon and Namoi rivers or south-east of the Barwon River, and the outback country north-west of the Barwon River, including the black opal mining and fossicking town of Lightning Ridge. Prior to 1957, when Lightning Ridge was ...