I haven't figured out a reliable way to tell the moss agate Masters and Akros apart (hasn't been a real area of interest for me yet). Is there a relaible way?
comparing marbles to known examples is without equal. Here are some known white base with blue swirl Ravenswoods. Sure there are others not included in this group but its a more relaible comparison to a number of Ravenswoods than you will be able to find anywhere else.
yes-back in November 2015 there was a Blenko Run. Both 5/8" and 3/4" marbles were made according to my notes. Let me see if I have a pic of the marbles...
I have transparent green Jackson’s that are UV reactive. My Ravens and Alox are not UV reactive. The white isn’t spread out across the whole marble on any of the Jackson’s though like yours
Actually, the fact that the white is UV reactive is EXTREMELY helpful in this situation. I haven’t really even checked any of my simple transparent green swirls to see what’s UV reactive and what isn’t.
Simple Transparent swirls are tough to accurately attribute unless they have obvious pattern clues. Here are examples of the transparent green Ravenswoods I have in my collection for a comparison. Mine are Ravenswood for sure in this case
There are a couple in the middle column that show how swirly this type can get. These are just different variants of this color combo in this 2003 3/4” run.