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Hi all, I have heard you and gotten better pictures. A couple observations. The small dark (without light) translucent marbles are not perfectly spherical. What I thought was flakes or tiling on them is actually chips in the marble from play. They are also smaller than a normal cats eye and I have a pic of them with a shooter for scale.
I also included a pic of a multicolored marble. There is only one that looks like this in the jar. Same with the blue swirl. The purple marble is here as well.
It rained today so they came out to play!
Thanks again!