125ct Rough Fairy Matrix Opal Slice from Winton Queensland (25g, 0.85oz)

Higher grade (A3), darker material

With a higher iron content in its sandstone matrix, most Fairy Opal finished stones with one or two treatments will achieve a body tone in the N1-N4 range (Black Opal). - Whereas other matrix materials at this stage will have a body tone in the N5-N6 range (Dark Opal) with some N4 Black. 

Queensland Fairy Matrix Opal is an affordable way to create great looking black opals, with the added protection of a glassy resin coating.

Treated to show the higher grade opal fire. - will need a final treatment after cutting. *


Pictures taken wet.

Has been; sliced to show face of the stone, permanently darkened to N3/N4 with a single sugar carbon and heat treatment. - easier treatment method due to properties of this material. *

Please refer to pictures and video for size and quality. - WYSIWYG

* Treatment Process: 
Dissolve sugar into hot water at about 50/50 ratio,
Place stones into sugar water mixture for 1 day, 
Take stone(s) out of sugar water mixture and dry naturally for 1 day,
Place stone(s) individually in a double piece of tin foil (aluminium foil) and add spoon full of vegetable oil (any),
Wrap the foil around the stone(s) - not too tightly,
Place stone(s) in foil onto a BBQ - medium heat with closed lid for 1 hour,
Turn off BBQ and leave it for 2 hours to cool.

Clean the carbon off the face of the stone (with a CAB, Rotary, Sander, Sand paper) and Ta-Da!


Finish a stone in 3 steps:
Shape and rub stone down to at least 2000 grit,
Wash and then dry the stone thoroughly,
Coat in a two part epoxy resin for a glassy finish.


We do not use acid to treat our Andamooka or Fairy opal material.

Will combine shipping. 

All items sent registered mail Australia Post


International buyers please note:
Import duties, taxes and charges, if any, are the buyers responsibility