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• Koroit Opal Pairs (28)
• Koroit Opal Beads (52)

About Koroit Opals

Koroit Opals are known for their deep, strong ironstone with magic patterns and inclusions of colour. They are also generally larger-sized opals.

Source your single-gem or parcel Koroit Opals direct from opal miners and wholesaler/dealers. Koroit , Australia is home of Koroit Boulder opal. Close by are the opal mining fields of Jundah and Opalton, which also produce Matrix Opals. Their thin colour bars can produce beautiful patterns. Blackgate Opal Field has produces these dark, stunning opals, also known as Aboriginal Art Opals.

Polished conglomerate opal slabs from Koroit make outstanding displays, with unique natural patterns and kernels.

It only occurs in deposits in weathered sedimentary Cretaceous rocks in the west of the state of Qld .Koroit opal is mineral rock

The Term Koroit Matrix opal is where the opal occurs as a network of veins or infilling of voids or between grains of the host rock (ferruginous sandstone or ironstone).

Koroit Boulder opal is formed in veins thru ironstone material and have an exciting arrange of colours and mixtures. Koroit Opal can be clean faced opal or have inclusions of natural brown potch, either way most Koroit opals are unique.

Australian Koroit Opal cutters need to be experienced to cut open Yowah nuts and to drill holes to make koroit opal beads

Koroit  opal wholesalers include Rollingstone Opals, Yowah Opals, Colourmine Opals, True Blue Opals,Opalmania,Boulder magic, Fossil opals. Lightning opals, Opal web,Aussie Gems and more. Please view our opal forums about cutting Koroit opal rough and our opal article about drilling holes in Koroit boulder opals to make necklace pendants or Koroit  opal beads or Koroit opal jewelry.

Australian Koroit boulder information is available in on Koroit Boulder Opal help articles including Koroit opal rough, Koroit opal beads, Koroit opal gemstone, Koroit opal meaning and Koroit opal  aboriginal meaning under Opal stories ,. Koroit is aboriginal name for muddy water and area has thick clay base earth and Koroit opal is formed as veins in mud and has a very unique appearance.

The Term Koroit   Matrix opal is where the opal occurs as a network of inclusions or veins  or infilling of voids or between grains of the host rock (ferruginous sandstone or ironstone) .

Most family type opal miners are now based in Koroit or Yowah as smaller machinery or hand digging for opals is more common.

Koroit opals are mostly cut freeform compared to black opal that is mostly cut oval shape. This is due to larger size pieces that are mined and most have unique freeform shape. opals to make exquisite carvings or boulder scarabs and even boulder opal perfume bottles.

More about Koroit Opals.

Koroit Opals

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  23cts Quality Koro...
  downund... $50.00 USD

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  Collectors Old Opa...
  opalman... $125.50 USD

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  17 Cts''low Reserv...
  sedaopa... $6.00 USD

• 

  Red Flash Old Opal...
  opalman... $185.00 USD

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  24.80 Cts Koriot S...
  sedaopa... $8.50 USD

	BEAUTIFUL PATTERN PICTURE- QUALITY KOROIT OPAL EMBEDED GREEN 28 x 24 x 9mm ROLLINGSTONEOPALS	- 6 hours 42 minutes	$34.00 USD View / Buy This Item
	KOROIT PENDANT- VERY WELL POLISHED 57 CTS[BMP2337] BOULDER MAGIC	- 6 hours 42 minutes	$46.00 USD View / Buy This Item
	ELECTRIC GREEN & BLUE BAR VERY BRIGHT BOULDER MATRIX 47CTS 35 x 22 x 7mm KoroitOpal	- 6 hours 42 minutes	$79.99 USD View / Buy This Item
	NATURAL KOROIT UNIQUE PATTERN POLISHED STONE 194.80CTS ROLLINGSTONEOPALS	- 6 hours 42 minutes	$114.00 USD View / Buy This Item
	GORGEOUS PATTERN KOROIT OPAL EACH STONE IS UNIQUE 53.95 CTS 34 x 20 x 7mm ROLLINGSTONEOPALS	- 6 hours 42 minutes	$167.00 USD View / Buy This Item
	QUALITY KOROIT OPAL 27.25 CTS - LINES AND PATTERNS 36 x 12 x 6mm KoroitOpal	- 6 hours 42 minutes	$31.00 USD View / Buy This Item
	KOROIT PENDANT -WELL POLISHED 68CTS [BMP232 ] BOULDER MAGIC	- 6 hours 42 minutes	$10.00 USD View / Buy This Item
	KORIOT OPAL -TOP POLISH 42.50 CTS [AUY 124] sedaopals	- 6 hours 42 minutes	$40.00 USD View / Buy This Item
	KORIOT PENDANT WITH STRAP 110 CTS [QT013] quality opals	- 6 hours 42 minutes	$57.00 USD View / Buy This Item
	NATURAL KOROIT UNIQUE PATTERN POLISHED STONE 28 CTS ROLLINGSTONEOPALS	- 6 hours 42 minutes	$24.00 USD View / Buy This Item
	Amazing Pattern Koroit Opal 67.2 CTS [CP259] 41 x 28 x 6.6mm Twentyfirstopals	- 6 hours 42 minutes	$40.00 USD View / Buy This Item
	KOROIT OPAL CUT STONE 16.20 CTS SFJ-4105 (TBO) 20 x 14 x 6mm FOSSIL OPALS	- 6 hours 42 minutes	$19.00 USD View / Buy This Item
	BEAUTIFUL PATTERN PICTURE- QUALITY KOROIT OPAL 41.95 CTS 27 x 21 x 9mm ROLLINGSTONEOPALS	- 6 hours 42 minutes	$49.00 USD View / Buy This Item
	UNIQUE PATTERN KOROIT OPAL 9.60 CTS OM 1884 opalmania	- 6 hours 42 minutes	$33.00 USD View / Buy This Item
	KOROIT OPAL CUT STONE 13.70 CTS SFJ-4302 (TBO) 17 x 14 x 5mm FOSSIL OPALS	- 6 hours 42 minutes	$50.00 USD View / Buy This Item
	QUALITY KOROIT OPAL 19.30 CTS ELECTRIC COLOR PLAY 26 x 22 x 3mm KoroitOpal	- 6 hours 42 minutes	$172.00 USD View / Buy This Item
	KOROIT PENDANT- VERY WELL POLISHED 86.6 CTS[BMP2329] BOULDER MAGIC	- 6 hours 42 minutes	$62.00 USD View / Buy This Item
	UNIQUE PATTERN KOROIT OPAL 8.10 CTS OM 1874 opalmania	- 6 hours 57 minutes	$40.00 USD View / Buy This Item
	GREEN VEIN FLASH KOROIT TOP END OPAL 4.05 CARATS R 2126 opalplus	- 7 hours 2 minutes	$58.00 USD View / Buy This Item
	YowahOpals*1.70ct - KOROIT - Boulder / Matrix OPAL yowahopals	- 7 hours 9 minutes	$13.00 USD View / Buy This Item
	UNIQUE PATTERN KOROIT OPAL 12.25 CTS OM 1881 opalmania	- 7 hours 22 minutes	$42.00 USD View / Buy This Item
	FACETED KOROIT OPAL BEADS 49CTS BMA334 BOULDER MAGIC	- 7 hours 25 minutes	$29.00 USD View / Buy This Item
	NATURAL KOROIT PENDANT STONE (drilled sideways) 30.95 cts ROLLINGSTONEOPALS	- 7 hours 27 minutes	$8.00 USD View / Buy This Item
	BEAUTIFUL PATTERN PICTURE- QUALITY KOROIT OPAL 33.70 37 x 17 x 6mm ROLLINGSTONEOPALS	- 7 hours 32 minutes	$34.00 USD View / Buy This Item
	UNIQUE PATTERN KOROIT OPAL 27.25 CTS OM 1896 opalmania	- 7 hours 37 minutes	$37.00 USD View / Buy This Item
	KORIOT PENDANT WITH STRAP 66.4 CTS [QT093] quality opals	- 7 hours 37 minutes	$29.00 USD View / Buy This Item
	BEAUTIFUL PATTERN PICTURE- QUALITY KOROIT OPAL 31.10 CTS 39 x 15 x 6mm ROLLINGSTONEOPALS	- 7 hours 42 minutes	$29.00 USD View / Buy This Item
	Amazing Pattern Koroit Opal 49.1 CTS [CP122] 31.2 x 22 x 8.1mm Twentyfirstopals	- 7 hours 42 minutes	$35.00 USD View / Buy This Item
	KOROIT MATRIX STONE- WELL POLISHED 45.20 CTS [BMP2553] 31 x 22 x 8mm BOULDER MAGIC	- 7 hours 42 minutes	$22.00 USD View / Buy This Item
	BEAUTIFUL PATTERN QUALITY KOROIT HIGH POLISHED OPAL 35.25cts ROLLINGSTONEOPALS	- 7 hours 42 minutes	$91.00 USD View / Buy This Item
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