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CELECG - Celestite Crystalline Glaze
FAAO - Fa's All-Opaque Crystalline Glaze
- Crystal Number Five Glaze
FO - Octal Crystalline Glaze
G1214M - 20x5 Cone 6 Base Glossy Glaze
G1214W - Cone 6 Transparent Base
G1214Z1 - Cone 6 Silky CaO matte base glaze
G1215U - Low Expansion Glossy Clear Cone 6
G1216L - Transparent for Cone 6 Porcelains
G1216M - Cone 6 Ultraclear Glaze for Porcelains
G1916Q - Low Fire Highly-Expansion-Adjustable Transparent
G1947U - Cone 10 Glossy transparent glaze
G2000 - LA Matte Cone 6 Matte White
G2240 - Cone 10R Classic Spodumene Matte
G2571A - Cone 10 Silky Dolomite Matte glaze
G2826R - Floating Blue Cone 5-6 Original Glaze Recipe
G2826X - Randy's Red Cone 5
g2851H - Ravenscrag Cone 6 High Calcium Matte Blue
G2853B - Cone 04 Clear Ravenscrag School Glaze
G2896 - Ravenscrag Plum Red Cone 6
G2902B - Cone 6 Crystal Glaze
G2902D - Cone 6 Crystalline Development Project
G2916F - Cone 6 Stoneware/Whiteware transparent glaze
G2926B - Cone 6 Whiteware/Porcelain transparent glaze
G2926J - Low Expansion G2926B
G2928C - Ravenscrag Silky Matte for Cone 6
G2931H - Ulexite High Expansion Zero3 Clear Glaze
G2931K - Low Fire Fritted Zero3 Transparent Glaze
G2931L - Low Expansion Low-Fire Clear
G2934 - Matte Glaze Base for Cone 6
G2934Y - Cone 6 Magnesia Matte Low LOI Version
G3806C - Cone 6 Clear Fluid-Melt transparent glaze
G3838A - Low Expansion Transparent for P300 Porcelain
G3879 - Cone 04 Transparent Low-Expansion transparent glaze
GA10-A - Alberta Slip Base Cone 10R
GA10-B - Alberta Slip Tenmoku Cone 10R
GA10-D - Alberta Slip Black Cone 10R
GA10x-A - Alberta Slip Base for cone 10 oxidation
GA6-A - Alberta Slip Cone 6 transparent honey glaze
GA6-B - Alberta Slip Cone 6 transparent honey glaze
GA6-C - Alberta Slip Floating Blue Cone 6
GA6-D - Alberta Slip Glossy Brown Cone 6
GA6-F - Alberta Slip Cone 6 Oatmeal
GA6-G - Alberta Slip Lithium Brown Cone 6
GA6-G1 - Alberta Slip Lithium Brown Cone 6 Low Expansion
GA6-H - Alberta Slip Cone 6 Black
GBCG - Generic Base Crystalline Glaze
GC106 - GC106 Base Crystalline Glaze
GR10-A - Pure Ravenscrag Slip
GR10-B - Ravenscrag Cone 10R Gloss Base
GR10-C - Ravenscrag Cone 10R Silky Talc Matte
GR10-E - Alberta Slip:Ravenscrag Cone 10R Celadon
GR10-G - Ravenscrag Cone 10 Oxidation Variegated White
GR10-J - Ravenscrag Cone 10R Dolomite Matte
GR10-J1 - Ravenscrag Cone 10R Bamboo Matte
GR10-K1 - Ravenscrag Cone 10R Tenmoku
GR10-L - Ravenscrag Iron Crystal
GR6-A - Ravenscrag Cone 6 Clear Glossy Base
GR6-B - Ravenscrag Cone 6 Variegated Light Glossy Blue
GR6-C - Ravenscrag Cone 6 White Glossy
GR6-D - Ravenscrag Cone 6 Glossy Black
GR6-E - Ravenscrag Cone 6 Raspberry Glossy
GR6-H - Ravenscrag Cone 6 Oatmeal Matte
GR6-L - Ravenscrag Cone 6 Transparent Burgundy
GR6-M - Ravenscrag Cone 6 Floating Blue
GR6-N - Ravenscrag Alberta Brilliant Cone 6 Celadon
GRNTCG - GRANITE Crystalline Glaze
L2000 - 25 Porcelain
L3341B - Alberta Slip Iron Crystal Cone 10R
L3685U - Cone 03 White Engobe Recipe
L3724F - Cone 03 Terra Cotta Stoneware
L3924C - Zero3 Porcelain Experimental
L3954B - Cone 6 Engobe (for M340)
L3954N - Cone 10R Base White Engobe Recipe for stonewares
MGBase1 - High Calcium Semimatte 1 (Mastering Glazes)
MGBase2 - High Calcium Semimatte 2 (Mastering Glazes)
MGBase3 - General Purpose Glossy Base 1 (Mastering Glazes)
MGBase4 - Glossy Base 2 Cone 6 (Mastering Glazes)
MGBase5 - Glossy Clear Liner Cone 6 (Mastering Glazes)
MGBase6 - Zinc Semimatte Glossy Base Cone 6
MGBase7 - Raspberry Cone 6 (Mastering Glazes)
MGBase8 - Waxwing Brown Cone 6 (Mastering Glazes)
MGBase9 - Waterfall Brown Cone 6 (Mastering Glazes)
TNF2CG - Tin Foil II Crystalline Glaze
VESUCG - Vesuvius Crystalline Glaze
FAC5 - Crystal Number Five Glaze
Modified: 2022-10-13 21:48:31
Cone 8-9 - Spodumene, talc variant
| 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
From Crystal Glazes Book 1 by Fara Shimbo, page 141.
Maturing Cone: 8-9, though works well at 7 and even 6. Crystal number: Lots.
Rate Of Growth: 1-1.5 cm diameter per hour, tiles or vessels.
Crystal Color: Very, very white with much internal structure.
Crystal Shape: Much like hemimorphite, often with frilly ends.
Ground Color: Colorless transparent on both tiles and vessels.
Crazing: Minimal on vessels; more on tiles.
Color Response: Great, but crystals colored with copper are likely to be quite transparent. Manganese shares this effect to an extent.
Seeding properties: Very good.
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, otherwise 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 cone 5. 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.
Related Information
“Fa’s Blue Heaven” crystal glaze on a porcelain tile.
This picture has its own page with more detail, click here to see it.
A tile made with Fa’s Base 5 and 3% Nickel Oxide. Reduction does not affect this glaze very much. If anything, the colors will be slightly muted.
Links
| Firing Schedules |
Fa's Number Five
Four-step to 2318F |
| Firing Schedules |
Shimbo Crystal Celestite Schedule
Five-step schedule by Fara Shimbo |
| URLs |
http://s3.excoboard.com/crystal
Crystalline Glaze Forum |
XML to Paste Into Insight-live
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