slagmarble

First photo third from right would be the one that needs a closer look. This appears to be the same marble in the center in the last photo

Mind posting some photos of the clear/white ones you have here? I see one top left in the bunch nearest the greens that might be something

Once in a great while I run into tri-color or unusual transparent base glass (teal, lilac, lavender etc.). Don't recall ever seeing red/orange. If production was tightened up on these and they didn't generally look so sloppy I think there would be a much greater interest in broad collectibility

Orange/black opaque, or, if it isn't opaque it works like a green brick where you have to hit some magical angle with a flashlight that I can't find

While I have stuff out...

I wouldn't have a problem calling this CA, it's a known color combo for hand gathered examples though I have to admit yours is a whole lot nicer than mine!

Can you post additional photos of the marble that is green/orange(red?) To the right of the large brown slag pictured center? The pattern looks an awful lot like Christensen Agate which would make this one particularly interesting

This is actually not their rarest color, they also made gray (backlights a very pale aqua color), teal, and a UV reactive green. Altogether the palette is similar to Christensen agate and a lot larger than what people normally think of in lucky boy boxes

I'm not Chad but here are a few, hope this helps...red is there so nobody thinks I'm doing any funny business

I have only seen one of these for sale in the last roughly 20 years and it was back when Alan Basinet was still alive and doing Running Rabbit. Someone could go dig up an old catalogue to find, it would have been mid 00's or thereabouts. That one I recall being around an inch and think of the extremely few that actually exist they all are...they are exceptionally rare marbles.

Either hand gathered or it's a very convincing accident in my opinion

Take picture 4, rotate 180 degrees either direction. What is directly opposite this side from the viewers perspective?

Check for pin pontil around 1 o'clock second image, pattern here infolds, would be a very short straight line

Aside from a website floating around out there (cogeco.ca?) detailing pontil comparison plus whatever is still here to scrounge up Roger Browse took what he knew to the grave. The only additional thing I have to offer is that big groupings of them supposedly came out of prospecting country to the west, some in Ontario and occasionally you'll find them in the US but just in drips. The slags get overlooked compared to their two-color opaque cousins because they aren't particularly flashy.

Here is one in green, there are a few traits that lead me this direction