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The Koroit opal field is known for the very distinctive type of boulder opal that is found in its mines. In Queensland boulder opal is found within a 300 km wide belt of sedimentary rocks in the Winton Formation. Here opal is found as a kernel in small concretions. [1] The Koroit Opal field was discovered in 1897 by Lawrence Rostron.
Carr et al. (1979) - Andamooka opal fields: the geology of the precious stones field and the results of the subsidised mining program. Geological Survey of South Australia Department of Mines and Energy Report of Investigations 51. 68 pp. Date: 30 April 2016, 13:55: Source: Precious opal in matrix (Quilpe, Queensland, Australia) 1: Author ...
Opalton is a outback rural locality in the Shire of Winton, Queensland, Australia. [2] It is known for the Opalton Opal Field, one of the largest and most extensively worked opal deposits in Queensland. [3] In the 2021 census, Opalton had a population of 59 people. [1]
South West Queensland is a remote region in the Australian state of Queensland which covers 319,808 km 2 (123,479 sq mi). [1] The region lies to the south of Central West Queensland and west of the Darling Downs and includes the Maranoa district and parts of the Channel Country. The area is noted for its cattle grazing, cotton farming, opal ...
Yowah is an outback town and locality in the Shire of Paroo, Queensland, Australia. [2] [3] In the 2021 census, the locality of Yowah had a population of 126 people.[1]The town is known for its opal mining and numerous opal fields that lie around the town as well as the "Yowah nut", a local type of opal distinctive to the region.
The Yowah opal field in the Shire of Paroo. The Yowah nut is a type of precious opal, found within the Yowah opal fields situated in Yowah, Shire of Paroo, South West Queensland, Australia since the latter part of the 19th century. [1] These opals are known for their distinctive nut-like shape, opalescent patterns, and vibrant colours.
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 ...
The average population of Ohio's counties was 133,931; Franklin County was the most populous (1,326,063) and Vinton County was the least (12,474). The average land area is 464 sq mi (1,200 km 2 ). The largest county by area is Ashtabula County at 702.44 sq mi (1,819.3 km 2 ), and its neighbor, Lake County , is the smallest at 228.21 sq mi (591. ...