Thank you for the reply! I am still very much learning and might be confused on the topic of what makes a Rainbo vs. a NLR. It was my understanding that Rainbo's had 1 or 2 ribbons, while NLR's had 4+ ribbons. When looking at the marble in the photo, I think I'm looking at 6 ribbons, but I could be wrong on that as well.
Any info or insights on this marble, or on how to better ID these in the future, is greatly appreciated!