Judy Musicant on mon 3 sep 07
Thanks Ron for your modified version. I will try it. Can I use regular =
spodumene? I've never seen anything called Aussie Spodumene.
Judy
"Here is the same glaze with a little more silica but using Aussi =
Spodumene.
Expansion is very close to the original. If you add more silica to make =
it
more stable you may lower the expansion too much. In that case simply =
add
more Neph Sy at the expense of the Spodumene but keep the total alkali =
mols
at the same level.
If any one tries it I'd like to know how it compares with the original - =
I
can make adjustments if needed.
Cowles revised green with Spod - RR
-----------------
AUSI SPOD........... 23.00
NEPH SY............. 6.50
F3134............... 51.50
EPK................. 19.00
----------
100.00"
Ron Roy on thu 6 sep 07
Hi Judy,
Most of what is available is from Australia now - it sparkles. There is a
type from Canada called Tanko which looks a little grey but they are very
close to each other in their analysis.
RR
>Thanks Ron for your modified version. I will try it. Can I use regular
>spodumene? I've never seen anything called Aussie Spodumene.
>
>Judy
>
>"Here is the same glaze with a little more silica but using Aussi Spodumene.
>Expansion is very close to the original. If you add more silica to make it
>more stable you may lower the expansion too much. In that case simply add
>more Neph Sy at the expense of the Spodumene but keep the total alkali mols
>at the same level.
>
>If any one tries it I'd like to know how it compares with the original - I
>can make adjustments if needed.
>
> Cowles revised green with Spod - RR
> -----------------
> AUSI SPOD........... 23.00
> NEPH SY............. 6.50
> F3134............... 51.50
> EPK................. 19.00
> ----------
> 100.00"
>
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Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
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