Name this glass color......

[Brian Graham]

I believe it's a gold based color. Clearly shows ruby - straw - green - blue.
If it was just ruby and straw, I believe that it was called amberina.
I acquired about 100 pounds of this stuff.....
Should I / can it be heat treated all to ruby?
2121

[Pete VanderLaan]

It looks to be a strike ruby made with cadmium/ selenium/ sulphur and has a trace of cobalt in it.

[Brian Graham]

Interesting. Wouldn't the cobalt still overpower the striking colors?

In Weyl on page 387, it talks about "Spoiled Ruby Glass" - describes a spoiled gold ruby that on special heat treatment in a gradient furnace went from ruby to blue with shades of yellow and green between.

[Pete VanderLaan]

I don't know about a gold ruby doing that. A copper ruby certainly will. And, no, if the cobalt is just the right balance, it will be overpowered by the ruby strike.

[Brian Graham]

Thanks Pete. I'll post results if I am able to make anything interesting out of it.

[Pete VanderLaan]

your strike should come on the punty. Rework the upper section repeatedly.

[Terry Crider]

Brian,
If that is from Summit Art Glass --- it was made to strike very easy.
Russ struck the pressed pieces on a glazer.
If you make more than one gather on the pipe --- the first gather will
likely strike all red.
A mold (press or blow) will give you the best results.
If you are doing off-hand work it will likely be mostly red with a little
blue at the bottom.
Terry

[Terry Crider]

P.S.
Russ called the color "Rubina" --- as did the old Cambridge Glass Co.
when they made in the 1920/1930's
Terry

[David Patchen]

That's way cool. Is it available in rod?

[Brian Graham]

Yes it is Summit Art Glass Terry. I found a local dealer that was sitting on tons of seconds and mismatched pieces - told me she was through selling it and asked me to take it all away. I had been getting cullet from Russ for several years, but was never able to acquire this particular color.
Do you happen to know what went into the batch?

[Pete VanderLaan]

That's way cool. Is it available in rod?
***********
It would not work as a rod by its very nature

[Terry Crider]

Brian,
Pete aready gave you the colorants --- athough Russ didn't add any
sulfur as such --- what ever ended up in the melt came from somewhere
else.
Terry

[Pete VanderLaan]

The sulfur usually comes in the form of Cadmium sulphide. Cadmium by itself in a melt is colorless. The sulfur makes it kick yellow. Sulfur is not really your friend in a cad sel melt and a balance of cad ox and cad sulphide makes the best colors. They are less gassy.