Back to Zinc Silicate Crystalline Glaze Pottery

I've batched a number of test glazes based on the "clear" formula I previously described in the transparency test (51.8% 3110, 24.5% ZnO₂, 14.4% Silica, 1% Titania and 1.2% Kaolin)

Piece #	Clay Prep	Base Glaze, Colorant
107	Wash of "inky" CoCO3*	Clear
108	Wash of Cerdec stain #279497*	Clear
109, 110	Wash of Drakenfeld  red stain #9377*	Clear
111	Wash of Drakenfeld  blue stain #41715*	Clear
112	-	Clear
113	Engobe with 5% FeO	Clear
114	Engobe with 20% Cerdec red stain #279497	Clear
115	Engobe with 20% Cerdec yellow stain #239416	Clear
116, 117	-	Clear, 1% NiO
118	Engobe with 20% Cerdec red stain #279497	Clear, 1% NiO
119	Engobe with 20% Cerdec yellow stain #239416	Clear, 1% NiO
120, 121	-	Other, .42% CoCO3, 1.0% Rutile, 1.33% MnO2
		Composition per above One brush application - left 2 brush applications - right
124	-	Clear, 1/2% NiO
125	-	Clear, 3% NiO (left)
127	-	Clear, 2% MnO2, 3% Fe2O3 (right)
128	-	Clear, 4% CuCO3 (left)
130	-	Clear, 2% CuCO3 (right)
131, 132	-	Clear, 1% CoCO3, 1% CuCO3
133, 134	-	Clear, 1% CoCO3, 1% CuCO3, 1% Fe2O3
135, 136	-	Clear, 1% MnO2, 2% CuCO3,
137, 138	-	Clear, 3% CoCO3, 1% CuCO3
139, 140	-	Clear, 1% CoCO3, 2% CuCO3
141	-	Clear, 0.6% CoCO3, 0.5% CuCO3, 0.3% SrCO3
142	-	Clear, 1% Fe2O3, 2% MnO2, 3% CoCO3,
143	Engobe with 10% Cerdec yellow stain #239416 (left) Engobe with 10% Cerdec red stain #279497 (right)	Clear

* Enough to cover

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	Recently I had the good fortune of importing many very interesting crystalline glazed pieces from Beijing, China.
	The source of all my good fortune---my day (and night, 24 - 7) job. ZIRCAR Ceramics, Inc.
	One of my other passions - landscaping, gardening, greens keeping, etc..