Category: Glaze > Crystalline > Aventurine
Created 2017-04-10 18:55:31 by Clara Giorello
Categories: Glaze > Crystalline > Aventurine
Firing Temperature: Δ5½-6
Atmospheres: Oxidation
Surface Type: Glossy
Transparency: Transparent

Aventurine with different RIO percentages. As we don't have Ff 3110, I used Fk10, reputed to be almost the same, made by a local supplier, Omar Dominguez.
The right one Rio % seems to be around 20/25%.
Sample by Bel Reinhardt (Brasil) uses Ff 3110 and 20% RIO
Venturina con diferentes % de ox de Fe. El % correcto parece estar en torno al 20%. Usé la frita FK10, de Omar Dominguez, teóricamente igual a la 3110.
La muestra de Bel Reinhardt (Brasil) usa la 3110 original de Ferro y 20% de ox de hierro.

Material Amount Batch Subtotal
Frit 3110 89
Lithium Carbonate 11
Total Base:100
Red iron oxide 20
Bentonite 2
Total: 122

Percentage Analysis

Ingredient Amount SiO2 Al2O3 B2O3 MgO CaO Li2O K2O Na2O KNaO Fe2O3 LOI
Frit 31108959.525.362.575.023.0713.4516.52
Lithium Carbonate114.486.52
Red iron oxide20191
Bentonite21.190.40.040.020.020.060.080.070.2
Total12260.715.762.570.045.044.483.0913.5116.619.077.72
100% no LOI 53.125.042.250.044.413.922.711.8214.5316.69

Unity Molecular Formula (UMF)

FLUXES

RO/R2O

0.44 Na2O
0.07 K2O
0.31 Li2O
0.18 CaO
STABILIZERS

R2O3

0.11 Al2O3
0.08 B2O3
GLASS-FORMERS

RO2

2.06 SiO2
OTHER

 

0.24 Fe2O3
SILICA:ALUMINA

SiO2:Al2O3

17.88

FLUX RATIO

R2O:RO

0.82 : 0.18

SiO2:Al2O3 Chart

Closest 24 neighbors in Glaze > Crystalline > Aventurine.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 17.88

Similar Base Recipes

No recipes with similar base ingredients and amounts were found.

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
John's Goldstone 5½-6 0.11 0.08 2.06 0.51 0.07 0.44 0.18 0.31
John Britt's Aventurine 6-8 0.11 0.08 2.06 0.51 0.07 0.44 0.18 0.31

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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
Lithium Carbonate Harmful WARNING Harmful if swallowed.
Causes serious eye irritation.
Harmful to aquatic life.
Red iron oxide Health Hazard WARNING May cause damage to lung through prolonged or repeated exposure by inhalation
Bentonite Harmful WARNING Causes eye irritation
Causes skin irritation
May cause respiratory irritation