Australian Boulder Opal Rough
From The Queensland Opal Mining Fields of Koroit, Quilpie & Yowah ...

Koroit Boulder Opal Rough

Our Boulder Opal Rough is individually sliced and faced.

Each boulder opal piece has been trimmed with both sides cleaned up and given a nice shine to their surfaces, so that their cutting potential is more clearly visible.

This material is still classed as "rough boulder" and still needs orientating, cutting & polishing to produce your quality finished Boulder Opal piece!



* All our Prices are in Australian Dollars


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All of our boulder opal rough photographs are taken in natural light to give the closest colour comparisons.

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Boulder opal rough RB016
More Photos...
RB016 - Price: $55.00
Queensland Boulder Opal Split
A very pretty Quilpie Boulder Opal Split displaying lovely greens with blues & some red in a couple of areas. This is a nice piece with a gentle undulating surface and would ideally suit someone with a little skill in carving & polishing Boulder Opal Crystal.

Size: 28.0mm x 21.0mm x 7.5mm to 4.5mm thick
Weight: 32.9 carats
Origin: Quilpie, Queensland


Koroit Boulder Opal Rough RB010

RB010 - Price: SOLD!
Koroit Matrix Opal Rough.
A nice slice of Koroit Boulder Rough showing greens, blues & purple.

Length: 40.0mm, Width: 18.5mm x 14.0mm
Thickness: 6.0mm x 4.5mm, Weight: 52 carats

Koroit Boulder Opal Rough RB011
RB011 - Price: SOLD!
Koroit Matrix Boulder Rough.
A beautifully patterned slice of rough koroit matrix with greens & blue.

Length:39.0mm, Width: 27.0mm
Thickness: 7.2mm x 4.5mm, Weight: 88.0 carats
Koroit Matrix Boulder Opal Rough RB012
RB012 - Price: SOLD!
Koroit Boulder Matrix Rough
An interesting patterned boulderstone with colour veins showing oranges, blues, greens & mauves.

Length:26.5mm x 22.0mm, Width: 19.5 mm
Thickness: 6.0 mm, Weight: 44.0 carats

RB013 - Koroit Matrix Boulder Rough
RB013 - Price: SOLD
Koroit Matrix Boulder Rough
Dark reddish ironstone with white patterning showing veins of Gem colour !

Length: 27.0 mm, Width: 17.0 mm
Thickness: 6.0 mm, Weight: 41.0 carats

RB014-Rough Koroit Boulder Matrix
RB014 - Price: SOLD!
Koroit Matrix Boulder Rough
Deep reddish browns with nice patterning & veins of green-blue Gem Matrix in ironstone.

Length: 42.0 mm, Width: 25.0 mm
Thickness: 6.0 mm, Weight: 51.0 carats






Click here for Black, Semi-Black,Crystal & Light Based Opal Rubs & Rough
Click Here For Boulder Opal Solids


Click here to read about our

Boulder Opal Mining Fields of Queensland



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