Weird efferte Boro marbles

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My first fully annealed marbles ! I finally realized what’s ACTUALLY been causing these weird internal fissures… this is soft glass! I’ve been using it since devardi sent me an xtra lb on accident and it never dawned on me it was soft glass. Different coe, different cooling rates, results in some weird looking marbles. You can still see some Boro colors if you look hard.