Natural Quarts and Mica additions to porcelain

Natural Quarts and Mica additions to porcelain
15/05/2014 Derek

Test of adding natural quartz and mica to porcelain.

Porcelain is Taida 609 fired to 1310 celsius in reduction.

Top row: 5, 10, 15, 20% addition of silica to 100g porcelain slip
Bottom row: 5, 10, 15, 20% addition of mica to 100g porcelain slip

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The natural quartz has a ton of impurities. Also I did not consistently grind or filter the quartz. Addition of quartz impedes translucency.

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I’m not sure exactly what type of mica I used. However, it seems pretty clean and of uniform particle size. Didn’t notice translucency affected much. The last tile is a little thicker than the others so appears more opaque.

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