I believe...apple red, etc. Topaz purely a English term? Relating to the gemstone? Come to think of it, gold ruby is a descriptive term for a certain TYPE of red. ...
... Pictured is a English glass circa about 1860. Pattern molded [dip mold] bowl and cut stem, very heavy for it's size and a darker shade of color than usually seen over here. Topaz?
No not purely an English term. From 1835 in the report from the Vienna Exhibition (source, Farbenglas I Neuwirth pp 255) 'The following color glasses were listed under the Harrach exhibits: "table candelabra in gold topaz composition;" ...'
And further in that paragraph:
"toilet bottles... of gold topaz composition, chrysoprase composition....;"
Spiegl also says from 1829:
From Walter Spiegl
Farbige Gläser
http://www.glas-forschung.info/pageone/pdf/farbglas.pdfScroll down to page 30 under the Heading 'Rosa Rubin und Topas-glas
'Mit dem Goldrubin verwandt ist das »Topasglas«, das man in Neuwelt schon 1829
herstellen konnte und bei Lötz und Schmidt in der Goldbrunnhütte etwa seit 1830.
Neben der Goldauflösung wurde der Schmelze eine kleine Menge Antimonoxid
beigegeben, das dem Glas eine rötlich gelbe Färbung verleiht.'
using google translate this says:
'Related to the gold ruby is the »topaz glass«, which was found in Neuwelt as early as 1829
could produce and at Lötz and Schmidt in the Goldbrunnhütte since about 1830.
In addition to dissolving the gold, a small amount of antimony oxide was added to the melt
added, which gives the glass a reddish-yellow color.'
I think it's a pale browny/reddy amber colour going by a Jiri Suhajek vase shown for Moser in The Legend of Bohemian Glass (Antonin Langhamer pp 273 plate 298:
it's this vase shown and described as having a 'topaz layer'
https://www.worthpoint.com/worthopedia/vase-jiri-suhajek-moser-glassworks-hi-307770001Spiegl describes how the 'topaz glass' was made as above. I read that as, in addition to the gold ruby recipe a small amount of antimony oxide was added to make the 'Topasglas'.
So it's curious how Pellatt seems to describe topaz glass as being made with uranium oxide. See also info hereon this point:
https://www.glassmessages.com/index.php/topic,70066.msg391983.html#msg391983Your goblet is lovely btw. It's a little more green than I would have pictured in my mind's eye for topaz colour. Do you know where it's from? Is it a Powell goblet?