Description: 105ct Rough Fairy Matrix Opal Slice from Winton Queensland (21g, 0.75oz) Higher grade (A2), 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
Price: 65 AUD
Location: Sutherland
End Time: 2024-08-06T11:30:06.000Z
Shipping Cost: 10.15 AUD
Product Images
Item Specifics
Returns Accepted: ReturnsNotAccepted
Gemstone Creation: Natural
Item Width: 28 mm
Number of Pieces: 1
Item Length: 54 mm
Country/Region of Manufacture: Australia
Gemstone Colour: Bi-Colour/Multicolour
Gemstone Type: Opal
Gemstone Form: Rough
Gemstone Treatment: Heated
Brand: Unbranded
Country of Origin: Australia
Item Depth: 9 mm
