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$60.00 USD
Price
Closed
29/08/2023 12:34 pm

12.20cts Koroit Boulder Opal Polished Stone * AOH-2752

SKU
Dimensions (mm)
22.600 x 13.800 x 4.100mm
Weight (cts)
12.200
Type
Cabochon, Polished
Shape
Oval
Colours

Down Under Opals

"Dreaming Opals"

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. 

We use a 100mm Macro Lens to capture as much detail as possible, sometimes these details are not visible to the common eye.

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

Happy Bidding.

Shipping provider Shipping to Australia Shipping to rest of world
Standard Shipping - Tracked $15.00 / 7 days $20.00 / 15 days
Australia
Standard Shipping - Tracked is discounted to $20.00 on orders with 2 or more items
Rest of the world
Standard Shipping - Tracked is discounted to $20.00 on orders with 2 or more items
FedEx $45.00 / 7 days $45.00 / 7 days
Australia
FedEx is discounted to $45.00 on orders with 2 or more items
Rest of the world
FedEx is discounted to $45.00 on orders with 2 or more items
Express Shipping $20.00 / 2 days $40.00 / 14 days

downunderopals
downunderopals
Specializing in Queensland Boulder Opal, all fields. We source our rough directly from miners and miners only on majority of our stock. I had left the business for a few years to follow another career path, this did not last long and back in the game full time. Concentrating mostly on rough and rubs from Yowah, Koroit and some traditional boulder from Winton, Quilpie, Jundah, Eromanga and Opalton. Working hard to bring you the best prices and quality. As time progresses so will my stock level.
Helensvale, Australia
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Audit

The Opal Sheriff program allows our members to request an audit on any product, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.

Shipping Details

Shipping:
$20.00 15 days via Standard Shipping - Tracked
Ships from:
Australia

Payment Options

  • paypal
  • stripe
  • gempay
This seller adds 10.00% tax to transactions in Australia.

Overview

Listing Type : Standard
Product ID : 1301653
Starts : 25th August 2023 03:25 pm PDT
* All prices are in USD