Category: Glaze > Crystalline
Created 1996-12-06 08:00:00 by Glazy Admin
Categories: Glaze > Crystalline
Firing Temperature: Δ6
Surface Type: Matte

Glaze Type: Crystalline

Mishy Michelle Lowe, potter in the Phoenix desert

Material Amount Batch Subtotal
Dolomite 50
Custer Feldspar 37.5
Gerstley Borate 12.5
Total Base:100
Cobalt Carbonate 14.3
Copper Carbonate 14.3
Total: 128.6

Percentage Analysis

Ingredient Amount SiO2 Al2O3 B2O3 MgO CaO K2O Na2O KNaO P2O5 Fe2O3 TiO2 CoO CuO LOI
Custer Feldspar37.525.696.380.113.751.134.880.040.11
Gerstley Borate12.51.850.133.350.442.420.050.50.550.
Cobalt Carbonate14.39.015.29
Copper Carbonate14.39.215.09
100% no LOI 30.497.23.7112.6119.694.

Unity Molecular Formula (UMF)



0.04 Na2O
0.06 K2O
0.48 CaO
0.42 MgO


0.1 Al2O3
0.07 B2O3


0.69 SiO2


0.18 CoO
0.17 CuO





0.1 : 0.9

SiO2:Al2O3 Chart

Closest 100 neighbors in Glaze > Crystalline.

Click and drag to zoom
Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 7.19

Similar Base Recipes

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Similar RO/R2O Unity Formulas

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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
Dolomite Health Hazard DANGER May cause cancer (Inhalation) 1 0 0 E
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.
Gerstley Borate
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.