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Aniline red; an artificial coal-tar dyestuff, of a metallic green color superficially, resembling cantharides, but when dissolved forming a brilliant dark red. It consists of a hydrochloride or acetate of rosaniline. See Rosaniline.

A supposed rare metallic element, with a characteristic spectrum, found associated with yttrium and other rare metals. Its individuality and properties have not yet been determined.

Lead sulphide; the principal ore of lead. It is of a bluish gray color and metallic luster, and is cubic in crystallization and cleavage. False galena. See Blende.

A rare metallic element, found in certain zinc ores. It is white, hard, and malleable, resembling aluminium, and remarcable for its low melting point (86

The mineral or earthy substance associated with metallic ore.

a witty or wise saying. Artificial gem, an imitation of a gem, made of glass colored with metallic oxide. Cf. Paste, and Strass.

A lead-gray or grayish blue mineral with a metallic luster, consisting of sulphur, antimony, and lead, with a small proportion of arsenic.

A narrow ornamental fabric of silk, woolen, or cotton, often with a metallic wire, or sometimes a coarse cord, running through it; -- used as trimming for dresses, furniture, etc. Gimp nail, an upholsterer's small nail.

A name given to some sulphides, mostly dark-colored, which have a brilliant metallic luster, as the sulphide of copper, called copper glance. Glance coal, anthracite; a mineral composed chiefly of carbon. -- Glance cobalt, cobaltite, or gray cobalt. -- Glance copper, c -- Glance wood, a hard wood grown in Cuba, and u…

A metallic mineral having a grayish tin-white color, and containing cobalt and iron, with sulphur and arsenic.

A rare metallic element, of a silver white color, and low specific gravity (2.1), resembling magnesium. It never occurs naturally in the free state, but is always combined, usually with silica or alumina, or both; as in the minerals phenacite, chrysoberyl, beryl or emerald, euclase, and danalite. It was named from its…

A metallic element, constituting the most precious metal used as a common commercial medium of exchange. It has a characteristic yellow color, is one of the heaviest substances known (specific gravity 19.32), is soft, and very malleable and ductile. It is quite unalterable by heat, moisture, and most corrosive agents,…

, usually reddish or ferruginous (owing to oxidized pyrites), forming the upper part of a metallic vein.

of the contents at the several levels. -- Graduated spring (Railroads), a combination of metallic and rubber springs.

Grains of paradise, the seeds of a species of amomum. -- grain tin, crystalline tin ore metallic tin smelted with charcoal. -- Grain weevil (Zoöl.), a small red weevil (Sitophilus granarius), which destroys stored wheat and othar grain, by eating out the interior. -- Grain worm (Zoöl.), the larva of the grain moth.…

ative carbon in hexagonal crystals, also foliated or granular massive, of black color and metallic luster, and so soft as to leave a trace on paper. It is used for pencils (improperly called lead pencils), for crucibles, and as a lubricator, etc. Often called plumbago or black lead. Graphite battery (Elec.), a voltaic…

hrome. -- Emerald green. (Chem.) (a) A complex basic derivative of aniline produced as a metallic, green crystalline substance, and used for dyeing silk, wool, and mordanted vegetable fiber a brilliant green; - - called also aldehyde green, acid green, malachite green, Victoria green, solid green, etc. It is usually f…

A ring formed by twisting on itself a single strand of an unlaid rope; also, a metallic eyelet in or for a sail or a mailbag. Sometimes written grummet.

or groundsel. (b) (Railroads) A bed plate for sleepers or ties; a mudsill. (c) (Teleg.) A metallic plate buried in the earth to conduct the electric current thereto. Connection to the pipes of a gas or water main is usual in cities. Knight. -- Ground plot, the ground upon which any structure is erected; hence, any bas…

Having fine, short, and sharp points on the surface; as, the hackly fracture of metallic iron.