Ceramics
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OXIDES

1. SOURCES OF BASE OXIDES (RO)

Barium Oxide (BaO) - barium carbonate (BaCO3) toxic

Calcium Oxide (CaO) - calcium carbonate also called whiting (CaCO3) Colmanite also known as gerstley borate (2CaO.3B2O3.SH2O) dolomite (CaMg(CO3)2) bone ash, (Ca3(PO4)2)

Lead Oxide (PbO) - don't use it-very poisonous

Lithium Oxide - we do not use (Li2O)

Magnesium Oxide (MgO) - magnesium carbonate (MgCO3) - dolomite (CaMg(CO3)2 - talc (4MgO.5SiO2.H2O)

Potassium Oxide (K2O) - Potassium carbonate also known as Pearl Ash (K2CO3) - Potash feldspar (K2O.Al2O3.6SiO2) - Cornwall stone (1RO.1.16Al2O3.8.95SiO2)

Sodium Oxide (Na2O) - Sodium Chloride (NaCl) - Soda Ash (Na2CO3) - Sodiumbicarbonate (NaHCO3) - Borax (Na2O.2B2O3.10H2O) - Soda Feldspar (Na2O.Al2O3.6SiO2) - Nephelinesyenite (K2O.3Na2O.4Al2O3.9SiO2)

Zinc Oxide (ZnO)

2. SOURCES OF NEUTRAL OXIDES (R2O3)

Alumina (Al2O3) alumina hydrate (Al(OH)3) - feldspar, cornwall stone (RO.Al2O3.6SiO2) - kaolin (Al2O3.2SiO2.ZH2O) - nepheline syenite (K2O.3Na2O.4Al2O3.9SiO2) - plastic uitrox (RO.1.69Al2O3.14SiO2) - pyraphyllite (Al2O3.4SiO2.H2O)

Boric Oxide (B2O3) used as a flux - boric acid (B2O3.2H2O) - borax (Na2O.2B2O3.10H2O) - colemanite (gerstley borate) (2CaO.3B2O3.5H2O)

Chromic Oxide (CR2O3) - colorant

Red Iron Oxide (Fe2O3) - colorant

3. SOURCES OF ACID OXIDES (RO2)

Silica, flint quartz (SiO2) - ball clay (Al2O3.2SiO2.2H2O) - kaolin (Al2O3.2SiO2.2H2O) - soda feldspar (Na2O.Al2O3.6SiO2) - potash Feldspar (K2O.Al2O3.6SiO2) - cornwall (R2O.Al2O3.9SiO2)

Tin Oxide Opacifier (SnO2)

Titanium Oxide - Opacifier and colorant - Titanium dioxide (TiO2) - rutile (TiO2) contains some iron and uanadium