Hi @royjohn
Thank you for sharing your knowledge about opal!
Some recent news: I went to a regional gem show and found a man who will cut this particular stone and who has offered to share some of his lapidary knowledge with me.
He has a passion for opal. We are meeting on Tuesday 10/24! I’ll have video of this stone after it’s cut a bit and all polished up and sparkly very soon. I’ll be able to upload a video tonight in about 5 hours or so of the other face of the stone and in the mean time I would suggest checking out the other video on my channel of this stone. This piece is merely a chunk that flew off when I struck the larger piece squarely with my rock pick. A good bit was destroyed instantly but I was left with this piece which weighs 2.4g and the larger piece is at least 5x to 8x as much opal…If you look at my larger piece, you can see a pit in the bottom right and this chunk fits right into there. I estimate that with all of the clay and outer bark layer ground off, this would be a 1.8g to 2g chunk.
There is no fire layer in this type of wood opal, every bit of the black you see, and even the bark, is precious opal with play of color in it. 360 degrees of rainbow juice crammed into a rock. Those three tightly packed diamonds that flash on the face at :32seconds are literally on the face of the fracture on the nanometer scale, which is what we are looking at - a clean fracture with no work done to it. 
It will hurt my heart to have to grind on it, for even the slivers I kept of this specimen flicker and flash in the light.
I suspect the view of the fire will be different looking at it from the round face (area under the outer bark) instead of the cross section. Unfortunately I can only do so much at the moment with a razor blade so we will have to see what my new friend can reveal with his lapidary skills. Which will be soon! We will also be able to get an idea of its pattern. Thanks for commenting!