Gabriel Tejeda on thu 1 may 03
I am sorry, I used Manganese Dioxide instead of Magnesium
----- Original Message -----=20
From: Gabriel Tejeda=20
To: CLAYART@LSV.CERAMICS.ORG=20
Sent: Thursday, May 01, 2003 11:49 AM
Subject: : Fara Shimbo and the Quest for Purple or Violet
This is my cone 1-2 Magn.Diox. purple-violet (shiny and transparent) you =
might want to try it or twik it to your temperature.Its really beautiful =
at cone 1-2 (2080-2110 F)
If any body knows why I am getting the purple-violet, please let me =
know!
opalescent purple-violet CLEAR FRIT 14.90 14.02 Clear Frit is a ferro =
frit # DW91302 it's similar to Frit 3134 F-4 FELDSPAR =
22.50 21.17 SILICA 13.70 12.89 WHITING 9.50 8.94 ZINC OXIDE 11.90 =
11.19 EPK KAOLIN 7.00 6.59 CUSTER FELDSPAR 12.00 11.29 STRONTIUM =
CARBONATE 4.00 3.76 LITHIUM CARBONATE 2.00 1.88 TITANIUM DIOXIDE =
6.00 5.64 BENTONITE 2.30 2.16 CMC GUM 0.50 0.47 106.30 Add =
MagnesiumDioxide 3.00 CLEAR FRIT =
UnityFormula Analysis Mole% CaO 0.69* 0.17 19.17 Na2O 0.31* 0.08 8.41 =
Al2O3 0.11 0.05 2.98 B2O3 0.61 0.19 16.80 SiO2 1.91 0.51 52.65 =
Calculated LOI 0.00 Frit 3134 | UnityFormula Analysis Mole% CaO =
0.68* 0.20 21.98 Na2O 0.32* 0.10 10.19 B2O3 0.63 0.23 20.36 SiO2 1.48 =
0.46 47.47 Calculated LOI 0.00 UnityFormula Analysis Mole% CaO =
0.35* 0.09 10.14 Li2O 0.06* 0.01 1.87 MgO 0.00* 0.00 0.12 K2O 0.06* 0.02 =
1.74 Na2O 0.12* 0.03 3.47 ZnO 0.34* 0.12 9.98 SrO 0.06* 0.03 1.85 TiO2 =
0.18 0.06 5.15 Al2O3 0.24 0.11 6.92 B2O3 0.09 0.03 2.74 P2O5 0.00 =
0.00 0.01 SiO2 1.92 0.50 55.96 Fe2O3 0.00 0.00 0.07 Calculated LOI =
7.23
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