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s or veins of sulphide of iron, and is much valued for ornamental work. Called also lapis lazuli, and Armenian stone.

A mineral of a light indigo-blue color, occurring in small masses, or in monoclinic crystals; blue spar. It is a hydrous phosphate of alumina and magnesia.

An albuminous mineral of a rich blue color. Same as Lazuli, which see.

olor found in Armenia, Tuscany, etc. -- Armenian stone. (a) The commercial name of lapis lazuli. (b) Emery.

blue color of the unclouded sky; cerulean; also, cloudless. Azure stone (Min.), the lapis lazuli; also, the lazulite.

Blue ruin, utter ruin; also, gin. [Eng. Slang] Carlyle. -- Blue spar (Min.), azure spar; lazulite. See Lazulite. -- Blue thrush (Zoöl.), a European and Asiatic thrush (Petrocossyphus cyaneas). -- Blue verditer. See Verditer. -- Blue vitriol (Chem.), sulphate of copper, a violet blue crystallized salt, used in elect…

To be converted into gelatin, or into a substance like jelly. Lapis lazuli, if calcined, does not effervesce, but gelatinates with the mineral acids. Kirwan.

A kind of color prepared from calcined lapis lazuli; ultramarine; also, a blue prepared from carbonate of copper. [Written also sanders-blue.]

A blue pigment formerly obtained by powdering lapis lazuli, but now produced in large quantities by fusing together silica, alumina, soda, and sulphur, thus forming a glass, colored blue by the sodium polysulphides made in the fusion. Also used adjectively. Green ultramarine, a green pigment obtained as a first product…