Gayle Bair on mon 20 aug 12
I cut myself on the 35 mesh kyanite when I ran my hand along the kiln shelf
to even it out. Those little razors were a lesson I have not forgotten!
I've not tested it after it's fired though.
Gayle
Gayle Bair Pottery
gayle@claybair.com
www.claybair.com
On Mon, Aug 20, 2012 at 4:55 PM, Hank Murrow wrote:
> On Aug 20, 2012, at 1:52 PM, ronroy@CA.INTER.NET wrote:
>
> > Just to make sure everyone understands - what my experience is.
> >
> > Heavier mesh sizes of Kyanite can cut - it's a needle shape crystal -
> > not a problem for hand building but hard on the hands when throwing.
> >
> > I have designed many bodies with 100 mesh kyanite - up to 20% - and
> > there have been no problems reported. It does not turn into
> > cristobalite in high fire stonewares like fine silica does - a good
> > solution to what can be a serious problem.
>
> Dear Ron;
>
> I have been using up to 33% Kyanite 35 mesh in my Tea body with good
> results. I don't experience much abrasion when throwing, but I do stretch
> and carve the pots to thin them down when they are still soft. If I were
> throwing thinner to start with, perhaps I would experience some abrasion?
>
> Cheers, Hank
>
> The body in question: 33% Kyanite 35 mesh, 33% ball, 33% kaolin, 1% Vee
> Gum T. Anagama fired.
>
>
> Same body, also fired in anagama to C13+.
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