Old school reached out and said Akro, so no worries. Chad, I think your awesome... and keep on keeping on... We can all disagree. That's what makes marbling great!
We need the slag master here... "Slagmarbles"
It rare today's, but back in the day they were on the bay in the 1 1/4" to 1 5/8". Mainly brown, but there was a couple red if I remember correctly?