Ric

Another great marble, Alan - very nice! Josh Simpson?

@Wolf Nice group of Akros.

@disco005 Very nice, Jess - the yellow and blue on clear is really cool - I don't remember seeing another.

That is what I have been saying - apparently, not very well though. I would expect the mica in cased examples to appear pretty much the same, regardless of the base color.

Why is it that the color of the metallic sheen produced by the mica varies with the color of the base glass? If they were all cased in clear wouldn't you expect the mica to look the same silver color regardless of the base color - like it does on Onion Skins or Peppermints - regardless of what color lies beneath it?

It's not, I agree with you in general. But in reference to micas, I think "cased" actually has some utility since it describes a construction that is significantly different than non-cased versions. If you think about Onion Skins or Peppermints with mica the idea of "cased" loses its significance since they are all cased in clear glass.

@VaMarbles Getting back to "blizzards" - maybe it just has to do with how much mica there is. If so, it's pretty subjective. I imagine Minnesotans and Floridians might have different ideas about what constitutes a blizzard.

Morphy has listed several over the years too. https://auctions.morphyauctions.com/auctionresults.aspx?searchvalue=cased+mica+marble&searchby=3

That was my understanding too.

There are machine-made micas? I've seen single and double pontils but never a machine-made - unless maybe a JABO contract marble.

I thought this was pretty well accepted terminology/type perhaps cased in clear rather than cased in the same color as the base glass?

So you mean this particular opaque color/type?

Cased micas have the mica encased under clear on top of the colored base glass so the mica looks silver and doesn't take on the color of the base glass. The mica on this one still looks amber from here.

Nice marbles, I'm not sure but I think "blizzard" has to do with whether or not the mica is cased.

Wow, okay - Vitro Swirls 4 and 5 both look amber to me and they both have thin purple on the white too.

I have always wondered if the Swea' Peas were a particular color combination or just any Akro peewee. Any ideas?

This really is a fine book. The covers, paper, printing, binding and photo reproduction are very high quality. I could offer some criticism, very few things are perfect, but given the behemoth effort this book took and the overall quality of the final product, it's hardly worth mentioning. Kudos to the authors for putting together an excellent reference.

Hmmm . . . now you've got me thinking. Have I ever seen a good red on an Imperial? Not that I recall at the moment.

It's not a swirl, it's just swirly.

A Conqueror variant, IMO.

It'd be a weird Vitro.

This is either the same marble as Vitro 5 Swirl you posted or a very close sibling.

Wow, you're showing some wacky ones today - no particiclar name that I know of,

A Conqueror variant, IMO - cool patch colors.

That's a crazy one. I can't really figure it out - pinched seams and a deep fold. It looks like it might be a dug Peltier to me.