SC - islinglass crystals!? Am I thinking of the wrong thing?

[Decker, Terry D.]

According to this derivation of the word, the sturgeon came first. :-)

Bear

i*sin*glass (i1zen-glas?, i1zing-) noun
1.	A transparent, almost pure gelatin prepared from the air bladder of
the sturgeon and certain other fishes and used as an adhesive and a
clarifying agent.
2.	Mica in thin, transparent sheets.
[By folk etymology (influenced by GLASS), from obsolete Dutch huizenblas,
from Middle Dutch huusblase : huus, sturgeon + blase, bladder.]


> That particular islinglass is known as muscovite mica, used in oven 
> doors and
> such in the "Good Ole Days". It's a clear mineral found in areas where 
> there
> was volcanic activity, like here in the Blue Ridge... the other 
> isinglass
> probably influnced the first one's name or visa-versa as in the 
> current/rasin
> debate.
> 
> Corwyn
> =====================================================================
> The isinglass that I am familiar with is the lining of fish swim 
> bladders, which is used as 1) a period thickening agent and 2) a fining 
> for fermented beverages that helps precipitate spent yeasties.  Rather 
> nasty to think about, but very effective for both.
> 
> fra niccolo
> 
> 
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