Marbleneophyte

So I seem to recall reading somewhere that If a marble is luminescent its Akro. Is this correct? Is this an Akro swirl?

I've been trying ID this pair and after reading the Marble Alan site I think they are Ravenswood Brown Based Swirls. Thoughts?

There were Vitros and Marble Kings in the lot, so that makes sense. Are the seams the tell?

Thank you Ron! I figured that you would know.

Can anyone help with the manufacturer?

Measures 5/8. Thoughts...

Thanks guys...

I knew it didn't look quite right...quality of glass and the finish. Thanks Steph!

I can find similar examples, but none that match. Ideas??

I thought this might be a Peltier but the seam looks defective which makes me question the quality and the mfg. Thoughts?

Thanks Steph. You're wealth of knowledge! So is this common or have a stumbled upon something rare?

Thoughts about this one? I'm hoping that's a turkey I see in photo 1. The light washes out the hairline stripes, but looking at them with a jewelers loop they're a brownish red. Oxblood??

Bought a lot today and it seems to be a mixture of old and new. This one really has me stumped. Thoughts??

Bought this one from this one from the same dealer. I'm hoping it is an old slag. Measures 7/8".