Here is a color chart of the crushed lab opal I currently have in stock marked with the x's, and a color chart from my supplier of the pieces in solid samples. Please understand that these are pics of the crushed material as it appears when I receive it. The solid samples are for reference only, and will not have the solid colors in the background as pictured, since it has been crushed and blended together now! And when I apply your choice of clear or black fill these crushed materials the colors will change, and will leave the dominant flash colors as the translucent main color will fade away. You also need to take into consideration the band material background color, like the reflective silver from the titanium, or the darker non-reflective colored carbon fiber or semi-reflective black zirconium. I have many of these listed in my shop with reference numbers so you can see what I mean how much the colors can change.
Just click the pic for a large view, and you do have the options at the bottom of the page to click on the different size pictures for your best viewing options, and the original is the largest option!