Magnesium carbonate
Natural magnesium carbonate – the mineral Magnesite, MgCO3 – is formed by precipitation from sea water, or by hydrothermal alteration of dolomite. Light magnesium carbonate
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June 1, 2023
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Lithium Carbonate
Lithium carbonate supplies Li2O. Relatively pure source of lithium in glazes. Theoretical formula Li2CO3 (40.4% Li2O); most supplies are over 99% pure. Manufactured in the
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May 9, 2023
Cobalt carbonate
Cobalt carbonate supplies CoO. A powerful colorant and flux. Cobalt carbonate is usually very fine and easily dispersed through the glaze. Insoluble in water. (courtesy
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May 2, 2023
Calcium phosphate
Calcium phosphate supplies CaO and P2O5. A refined substitute for bone ash (3CaO P2O5 is the formula often given for bone ash). It is a
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April 25, 2023
Dolomite
Dolomite is a calcium-magnesium carbonate flux used in the high fire range. Dolomite supplies CaO and MgO. Dolomite is calcium magnesium carbonate, theoretical formula CaMg(CO3)2.
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April 25, 2023
Talc
Talc supplies SiO2, MgO, CaO, and small amounts of Na2O, Al2O3, Fe2O3, and MnO. TX talc is reported to be less gassy than NY talc.
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April 25, 2023
Borax
Borax supplies B2O3 and Na2O. Borax is a highly soluble mineral, formed by the evaporation of ancient lake basins fed by volcanic springs during the
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April 25, 2023
Nepheline syenite
Nepheline syenite supplies SiO2, Al2O3, Na2O, K2O, CaO, MgO, and Fe2O3. Commonly used feldspathic rock. An excellent basis for glazes in the cone 4-6
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April 25, 2023
Lithium Oxide
Lithium Oxideis a high temperature flux, a powerful melter which means that it causes glazes to melt at relatively high temperatures, and is typically used
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April 21, 2023
Barium Carbonate
Barium carbonate is a white powder that is used as a flux in ceramic glazing. When added to the glaze, it helps to prevent defects
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April 21, 2023
