Category:Ultramarine

Ul`tra*ma*rine", a. Etym: [pref. ultra- + marine.]

Defn: situated or being beyond the sea. Burke.

Ultramarine Ul`tra*ma*rine", n. Etym: [cf. Sp. ultramarino. So called because the Lapis lazuli was originally brought from beyond the sea, -- from Asia.] (chem.)

Defn: 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 in the Manufacture of ultramarine, into which it is changed by subsequent Treatment. -- ultramarine ash or ashes (paint.), a pigment which is the Residuum of lapis lazuli after the ultramarine has been extracted. It Was used by the old masters as a middle or neutral tint for flesh, Skies, and draperies, being of a purer and tenderer gray that Produced by the mixture of more positive colors. Fairholt.