Stony Earth Glaze with Red Iron Oxide Alisa Liskin Clausen
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Ingredients
Instructions
Use 1–5% red iron oxide.
Specific gravity: 1.43. Stony Earth Glaze has an earthy brown and green color, with simple ingredients. No extra red iron oxide was added for the base test. Additions of red iron oxide from 2% and up resulted in an overall dark brown gloss. My tests with red iron oxide added in increments from 1–5% made the glaze darker, and finally a dull brown gloss with 5%.
Forshammer feldspar is a combined soda and potash feldspar. In the US, test with Custer feldspar, Minspar 200 feldspar, and a 50/50 mix of Custer feldspar and Minspar 200 feldspar.
Original recipe shared by Patrick Fleming in the April 1980 issue of Ceramics Monthly.
This recipe was shared by Alisa Clausen in the February 2020 issue of Ceramics Monthly.Recipe Topics
Clay Bodies and Casting Slips
Low Fire (Cone 022 – 01)
Mid Range (Cone 1 – 7)
High Fire (Cone 8 – 14)
Raku
Salt, Soda, and Wood
Slip, Engobe, and Terra Sigillata
Reference
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