Category: Glaze > Blue
Created 2015-10-19 03:12:24 by Terry Rorison
Categories: Glaze > Blue
Firing Temperature: Δ6
Atmospheres: Oxidation
Surface Type: Satin
Transparency: Opaque
Material Amount Batch Subtotal
Minspar 200 45
Silica 16
Dolomite 12
Talc (Theoretical) 12
Gillespie Borate 10
Total Base:103
Rutile 5
Cobalt Carbonate 2
Copper Carbonate 2
Bentonite 2
Total: 114

Percentage Analysis

Ingredient Amount SiO2 Al2O3 B2O3 MgO CaO SrO K2O Na2O KNaO P2O5 Fe2O3 TiO2 CoO CuO LOI
Minspar 2004531.018.360.681.852.944.790.030.14
Talc (Theoretical)127.613.820.57
Gillespie Borate101.180.172.450.392.30.050.380.383.09
Cobalt Carbonate21.260.74
Copper Carbonate21.290.71
100% no LOI 59.6511.732.416.786.560.041.873.335.20.020.644.461.241.27

Unity Molecular Formula (UMF)



0.15 Na2O
0.06 K2O
0.33 CaO
0.47 MgO


0.32 Al2O3
0.1 B2O3


2.76 SiO2
0.16 TiO2


0.01 Fe2O3
0.05 CoO
0.04 CuO





0.2 : 0.8

SiO2:Al2O3 Chart

Closest 100 neighbors in Glaze > Blue.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 8.63

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.

Daniel Spruyt 2017-07-06 14:31:04
With my materials and fired in a gas kiln oxidation, natural cooling: Tends to blister, no micro crystals


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
Minspar 200 Health Hazard WARNING May cause damage to lung through prolonged or repeated inhalation 2 0 0 E
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
Dolomite Health Hazard DANGER May cause cancer (Inhalation) 1 0 0 E
Talc (Theoretical) Harmful WARNING Causes mild skin irritation
Harmful if inhaled
May cause respiratory irritation
1 0 0 E
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
Rutile 1 0 0
Cobalt Carbonate Health HazardEnvironmental Hazard DANGER May cause cancer
Suspected of causing genetic effects
May damage fertility or the unborn child
May cause allergy or breathing difficulties if inhaled
May cause a allergic skin reaction
Very toxic to aquatic life
Very toxic to aquatic life with long lasting effects
2 0 0 *
Copper Carbonate Harmful WARNING Harmful if swallowed.
Causes skin irritation.
Causes serious eye irritation.
Bentonite Harmful WARNING Causes eye irritation
Causes skin irritation
May cause respiratory irritation