Definitions for zafferˈzæf ər
Random House Webster's College Dictionary
zaf•ferˈzæf ər(n.)
a blue pigment containing impure cobalt oxide, used in ceramic glazes.
Category: Ceramics
Origin of zaffer:
1655–65; < It zaffera, perh. < L sapphīrasapphire
Wiktionary
zaffer(Noun)
A pigment obtained, usually by roasting cobalt glance with sand or quartz, as a dark earthy powder. It consists of crude cobalt oxide, or of an impure cobalt arseniate. It is used in porcelain painting, and in enameling pottery, to produce a blue color, and is often confounded with smalt, from which, however, it is distinct, as it contains no potash. The name is often loosely applied to mixtures of zaffer proper with silica, or oxides of iron, manganese, etc.
Webster Dictionary
Zaffer(noun)
a pigment obtained, usually by roasting cobalt glance with sand or quartz, as a dark earthy powder. It consists of crude cobalt oxide, or of an impure cobalt arseniate. It is used in porcelain painting, and in enameling pottery, to produce a blue color, and is often confounded with smalt, from which, however, it is distinct, as it contains no potash. The name is often loosely applied to mixtures of zaffer proper with silica, or oxides of iron, manganese, etc
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