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On Oct 4, 2013, at 10:36 AM, john heitman <[log in to unmask]> wrote:

> It's also for making gun powder.  It is EXTREMELY fine, and falls apart at the touch if cooked long enough.
> 
> Franz

Oh! Slaps head. I should have thought of that use.

So where would they have gotten sulfur from in period times?

I know that you can get potassium nitrate from things like bat guano, although I'm not sure what processing is involved.

Stefan

--------
THLord Stefan li Rous    Barony of Bryn Gwlad    Kingdom of Ansteorra
   Mark S. Harris           Austin, Texas          [log in to unmask]
http://www.linkedin.com/in/marksharris
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