|Dimensions (mm)||25.8 x 17.8 x 5.9mm|
|Weight (carats)||24.35 carats|
The Koroit opal field is an opal mining area in Paroo Shire in South West Queensland, Australia. It is located about 80 km north northwest of Cunnamulla. It is not a town, nor should it be confused with the town of Koroit in rural western Victoria, Australia. It has neither electricity nor running water. Koroit is close to the town of Yowah which also produces a similar type of opal.
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.
The Koroit Opal field was discovered in 1897 by Lawrence Rostron. The most recent mining events started in 1972 when the popularity and profitability of the stone increased. The mining is done by either open cut large scale mining or by underground shafts.
Stone : Koroit Boulder Opal
Outback Queensland Australia
Cut and Polished.
Good pattern and colour
This beauty is ready to be set in jewellery.
Please note : Not all scales are made the same, so slight variation in measurements and weight are to be expected.
Also with finished stones we generally take thickness measurement in the middle of the stone.
WE OFFER FREE COMBINE SHIPPING - (7 DAYS)
Member of the " Queensland Boulder Opal Association "
Member of the " Lightning Ridge Miners Association "
100% Customer Satisfaction
The Opal Sheriff program allows our members to request an audit on any auction, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.
|Starts||29th Jun 2022 4:10pm PDT|
|Express Shipping||$40.00||14 days|
|Standard Shipping - Tracked||$20.00||15 days|
|Shipping Insurance all providers $27.50 (optional)|