Cindy Strnad on sun 8 apr 01
Floating Green ^6
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NEPHELINE SYENITE... 30.00 29.13%
GERSTLEY BORATE..... 21.00 20.39%
WHITING............. 8.00 7.77%
EPK KAOLIN.......... 10.00 9.71%
FLINT............... 31.00 30.10%
*Chrome Oxide........ 2.00 1.94%
*Cobalt Oxide........ 1.00 0.97%
========
103.00
CaO 0.63* 11.59%
MgO 0.07* 0.89%
K2O 0.05* 1.68%
Na2O 0.24* 4.95%
TiO2 0.00 0.04%
Al2O3 0.38 12.63%
B2O3 0.31 6.95%
P2O5 0.00 0.03%
SiO2 3.11 61.05%
Fe2O3 0.00 0.18%
Cost/kg 1.06
Si:Al 8.21
SiB:Al 9.01
Expan 7.39
I tested this one (found at www.frogpondpottery.com ) for my own benefit,
but am including it for general interest. I know most of us are gerstley
free these days. In case you have a nice stash, however, this is a gorgeous
glaze. It turned out a rich, soft gloss emerald green with floating gray
flecks. Worth the use of my precious GB, or of experimentation with
substitutes, in my opinion.
Cindy Strnad
Earthen Vessels Pottery
RR 1, Box 51
Custer, SD 57730
USA
earthenv@gwtc.net
http://www.earthenvesselssd.com
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