Category: Glaze > Specialty > Crawling
Created 2017-05-10 03:39:39 by Erin Bjorkstedt
Categories: Glaze > Specialty > Crawling
Firing Temperature: Δ10
Atmospheres: Reduction
Surface Type: Matte - Stony
Transparency: Opaque

A matte black crawling glaze, a fun collaborative recipe that turned out more interesting than anticipated. No running, great at showing textures. Stony in appearance.

Material Amount Batch Subtotal
Nepheline Syenite (Theoretical) 55
Magnesium carbonate 45
Total Base:100
Copper Oxide 9
Rutile 3
Total: 112

Percentage Analysis

Ingredient Amount SiO2 Al2O3 MgO CaO K2O Na2O KNaO Fe2O3 TiO2 CuO LOI
Nepheline Syenite (Theoretical)5533.3912.810.060.382.535.397.920.050.39
Magnesium carbonate4521.5123.49
Copper Oxide99
Rutile30.32.7
Total11233.3912.8121.570.382.535.397.920.352.7923.88
100% no LOI 37.8914.5424.470.442.876.128.990.43.0610.21

Unity Molecular Formula (UMF)

FLUXES

RO/R2O

0.13 Na2O
0.04 K2O
0.01 CaO
0.82 MgO
STABILIZERS

R2O3

0.19 Al2O3
GLASS-FORMERS

RO2

0.85 SiO2
0.05 TiO2
OTHER

 

0.17 CuO
SILICA:ALUMINA

SiO2:Al2O3

4.42

FLUX RATIO

R2O:RO

0.17 : 0.83

SiO2:Al2O3 Chart

Closest 19 neighbors in Glaze > Specialty > Crawling.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 4.42

Similar Base Recipes

Similar RO/R2O Unity Formulas

R2O3 - STABILIZERS RO2 - GLASS FORMERS RO/R2O - FLUXES
Recipe Name ΔTemp Al2O3 B2O3 SiO2 ZrO2 SnO2 TiO2 KNaO K2O Na2O CaO MgO ZnO BaO PbO Li2O SrO
Ted's Crawling Black 10 0.19 0.85 0.05 0.17 0.04 0.13 0.01 0.82
^9 White Bead 0.19 0.85 0.17 0.04 0.13 0.01 0.82

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Hazards

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
Magnesium carbonate WARNING Causes mild skin irritation
Causes eye irritation
Copper Oxide Harmful WARNING Harmful if swallowed 2 0 0 E
Rutile 1 0 0