AO | B1 | CE | | F5-3NO-E1 | FO | G1214M | G1214W | G1214Z | G1215U | G1216L | G1216M | G1916Q | G1947U | G2000 | G2240 | G2571A | G2587 | G2826X | g2851H | G2853B | G2896 | G2902B | G2902D | G2916F | G2926B | G2926J | G2926S | G2928C | G2931H | G2931K | G2931L | G2934 | G2934Y | G3806C | G3838A | G3879 | GA10-A | GA10-B | GA10-D | GA10x-A | GA6-A | GA6-AR | GA6-B | GA6-C | GA6-D | GA6-F | GA6-G | GA6-G1 | GA6-H | GBCG1 | GBCG2 | GC | GR | GR10-A | GR10-B | GR10-C | GR10-E | GR10-G | GR10-J | GR10-J1 | GR10-K1 | GR10-L | GR6-A | GR6-B | GR6-C | GR6-D | GR6-E | GR6-F | GR6-H | GR6-L | GR6-M | GR6-N | L2000 | L3341B | L3500E | L3617A | L3685U | L3724F | L3924C | L3954B | L3954N | P3998 | P5283 | TF | VS | WM | ZZ1

F5 - Fa's Crystal Number Five

Modified: 2013-03-25 08:45:32

Talc-Spodumene Glaze for Nickel Blues

Material Amount
Ferro Frit 3110*50.00
Zinc Oxide*27.00
Silica*14.00
Spodumene*4.00
Talc*4.00
Titanium Dioxide*1.00
100.00

Notes

So far, my favorite glaze for obtaining nickel-blue crystals on a transparent amber ground (via the addition of 3% nickel oxide). Generally fires from cones 8 to 9 but when nickel is used, should be fired to cone 10.

Due to low titania in this glaze, crystals colored with less than 4% copper carbonate are likely to be transparent and difficult to see.

One can get gorgeous dark steel blue crystals on a honey or amber colored
ground. I developed Celestite from this glaze to have a glaze that was
slightly higher in lithium than Base 5, specifically for use with copper
turquoises.

Fa's Base 5 has more zinc and less silica than Celestite, and many
people have reported to me good results firing this glaze as low as D5.
Recommended firing is to take the kiln to temperature, hold five minutes
at peak, then drop 50°C and start a slow ramp downwards to 1000°C
over about an hour and a half. I've never done this myself but I've seen
several beautiful pieces done this way. Check the Crystalline Ceramics
Web Resource for more details; folks post photos of their work regularly.

Links

Firing Schedules Fa's Number Five
Four-step to 2318F
Firing Schedules Celestite
Five-step schedule by Fara Shimbo
URLs http://s3.excoboard.com/crystal
Crystalline Glaze Forum

XML to Paste Into Insight

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<recipeline material="Ferro Frit 3110" amount="50.000"/>
<recipeline material="Zinc Oxide" amount="27.000"/>
<recipeline material="Silica" amount="14.000"/>
<recipeline material="Spodumene" amount="4.000"/>
<recipeline material="Talc" amount="4.000"/>
<recipeline material="Titanium Dioxide" amount="1.000"/>
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By Tony Hansen


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