Category: Glaze > Iron > Celadon > Green
Created 1996-06-03 09:00:00 by Glazy Admin
Categories: Glaze > Iron > Celadon > Green
Firing Temperature: Δ9-10
Atmospheres: Reduction
Surface Type: Glossy - Semi
Transparency: Translucent

Glaze Type: Celadon

Soft satin glow. Heavy green, like some jade. Glaze Type: Ca Celadon.
Opacity: Semi-opaque. Firing type: Reduction From Val Cushing. VC ed

Material Amount Batch Subtotal
Custer Feldspar 30
Silica 30
Whiting 19
Wood ash 6
Barnard Clay 4
Ball Clay (Theoretical) 3
Total Base:100
Red iron oxide 1
Total: 101

Percentage Analysis

Ingredient Amount SiO2 Al2O3 MgO CaO K2O Na2O KNaO P2O5 Fe2O3 TiO2 LOI
Custer Feldspar3020.555.10.0930.
Wood ash61.
Barnard Clay41.880.
Ball Clay (Theoretical)31.770.750.
Red iron oxide10.950.05
100% no LOI 65.3210.210.4913.334.891.496.390.933.260.08

Unity Molecular Formula (UMF)



0.07 Na2O
0.16 K2O
0.73 CaO
0.04 MgO


0.31 Al2O3


3.34 SiO2


0.06 Fe2O3
0.02 P2O5





0.23 : 0.77

SiO2:Al2O3 Chart

Closest 25 neighbors in Glaze > Iron > Celadon > Green.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 10.84

Similar Base Recipes

No recipes with similar base ingredients and amounts were found.

Similar RO/R2O Unity Formulas

No recipes with similar RO/R2O Unity Formulas were found.

Sid Henderson 2017-12-17 17:32:34
This recipe looks really exciting, and after I found it, I decided I wanted to try it out. I just wish there was a photograph of the actual glaze.


09/2016 Note: This is a new feature. If a recipe material is not listed, that material's data has not yet been added. Some materials only have GHS ratings, while others only have HMIS ratings. Warnings differ between systems and countries. Glazy does not take any responsibility for accuracy of linked SDS information. Contact your ceramics supplier for safety information for your specific materials.
Globally Harmonized System (GHS) Hazardous Materials Identification System (HMIS) SDS Link
Material Pictograms Signal Word Hazard Statements Health Flammability Hazard Protection
Custer Feldspar HarmfulHealth Hazard WARNING May cause damage to lungs through prolonged or repeated inhalation.
Suspected of causing cancer through
prolonged or repeated inhalation.
May cause allergy or asthma symptoms or breathing difficulties if inhaled.
May cause skin or eye irritation.
Silica HarmfulHealth Hazard DANGER From 200-Mesh SDS:
May cause cancer by inhalation.
Causes damage to lungs through prolonged or repeated exposure by inhalation.
* 0 0 E
Whiting Harmful WARNING Causes eye irritation
EPK HarmfulHealth Hazard DANGER EPK Kaolin is a naturally occurring mineral, which may contain amounts of crystalline silica
typically 0.1-1.0%, may cause damage to respiratory system through prolonged or repeated
1 0 0 E
Red iron oxide Health Hazard WARNING May cause damage to lung through prolonged or repeated exposure by inhalation