[Clayart] Black Hills

David McBeth dmcbethme at gmail.com
Sat Oct 27 09:26:01 EDT 2018


I think it is bentonite.  I knew some grad students in western Kansas who
would appropriate it from oil fields out there.  That name seems familiar.

David

On Fri, Oct 26, 2018 at 6:44 PM DIANA PANCIOLI <dianamp at comcast.net> wrote:

>
> Dear Clayart:
>
> Lots of questions today.
>
> Found a bag labelled BLACK HILLS.
> Pale grey, gritty.
> Sticky when wet.
>
> Made a Shrinkage and absorption bar to test it.
>
> The bar totally fell apart at 010!!
> Maybe was too wet to fire.
> It is a pale orange when fired.
>
> What can it be??
>
> Thanks,
>
> Diana
>


-- 
David McBeth
Professor of Art
Department of Visual and Theatre Arts
University of Tennessee - Martin
731-881-7416
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