It has very strong flashing pattern, although it's hard to show its brightness on a picture.
Please take a look the clip below.
I hope you now understand why we call it traffic light!!
Flashing rainbow colour is one of the hardest pattern to find.
As I said before, no two opals comes the same. So we never be able to replace an opal once it's sold.
To see more information about this beautiful boulder opal, please visit our website.
Have a lovely night.x