It’s been a very long time since I have had rough opal treasures from the old T-Bone Field in Lightning Ridge.
It sits behind the Coocoran Fields and is known for its incredible Witches Hat nobbys.
Although this one isn’t quite a Witches Hat or a Nobby, it’s a little hybrid of its own.
It has both a white cap and grey potch — I’ll have to decide whether to take off the potch and make a Crystal Opal or leave the potch to create a Dark or potentially a Black Opal.
T-Bone Opal Treasures
In the opal game, the idea is to cut out most of the inclusions to produce a nice clean gem.
Even with a gem torch, inclusions around the color bar can easily be missed or hidden.
Slowly I clean up the edges to get a better look at the color bar and the colors are looking amazing!
I can tell now it’s not going to be a black opal — it’s looking more like a dark or crystal opal at this stage.
The color bar is quite thick but it does begin to thin around on one side.
In order to get a nice size dome, I can see where the gem is going to cut from.
Top Off Time
As I go in, the sand isn’t playing nice so far!
There is some incredible color coming through but with sizable sand blobs.
These 3 main sand spots will determine the gem’s outcome but we’ll be onto a real winner if the sand comes out.
With these pesky sand spots thinning out my color bar, it means the potch is here to stay.
We finished with a lovely 4.56ct Dark Opal with an incredibly bright play of colors.
Dabbled with bold Floral, Flagstone and Chaff patterns — a little winner in my books!
You can find the finished gem here.