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A deep blue pigment or coloring material used in various arts. It is a vitreous substance made of cobalt, potash, and calcined quartz fused, and reduced to a powder.

Deep blue, like smalt.

A tin-white or gray mineral of metallic luster. It is an arsenide of cobalt, nickel, and iron. Called also speiskobalt.

A pale blue pigment, prepared from the native blue carbonate of copper, or from smalt; -- called also blue bice. Green bice is prepared from the blue, by adding yellow orpiment, or by grinding down the green carbonate of copper. Cooley. Brande & C.

y antimony (Min.), stibnite. -- Gray buck (Zoöl.), the chickara. -- Gray cobalt (Min.), smaltite. -- Gray copper (Min.), tetrahedrite. -- Gray duck (Zoöl.), the gadwall; also applied to the female mallard. -- Gray falcon (Zoöl.) the peregrine falcon. -- Gray Friar. See Franciscan, and Friar. -- Gray hen (Zoöl.),…

as a pellet out of a gun. Chaucer. Pellet molding (Arch.), a narrow band ornamented with smalt, flat disks.

Smaltite.

ed as a residue in fusing cobalt and nickel ores with silica and sodium carbonate to make smalt.

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. [Written also zaffre, and formerly zaffree, zaffa…