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Purpureo- :: Purpureo- () A combining form signifying of a purple or purple-red color. Specif. (Chem.), used in designating certain brilliant purple-red compounds of cobaltic chloride and ammonia, similar to the roseocobaltic compounds. See Cobaltic..

Bloom :: Bloom (n.) A popular term for a bright-hued variety of some minerals; as, the rose-red cobalt bloom..

Skutterudite :: Skutterudite (n.) A mineral of a bright metallic luster and tin-white to pale lead-gray color. It consists of arsenic and cobalt.

Linnaeite :: Linnaeite (n.) A mineral of pale steel-gray color and metallic luster, occurring in isometric crystals, and also massive. It is a sulphide of cobalt containing some nickel or copper..

Cobaltiferous :: Cobaltiferous (a.) Containing cobalt.

Vitriol :: Vitriol (n.) A sulphate of any one of certain metals, as copper, iron, zinc, cobalt. So called on account of the glassy appearance or luster..

Slaggy :: Slaggy (a.) Of or pertaining to slag; resembling slag; as, slaggy cobalt..

Danaite :: Danaite (n.) A cobaltiferous variety of arsenopyrite.

Roselite :: Roselite (n.) A hydrous arsenite of cobalt, occuring in small red crystals, allied to erythrite..

Cobaltite :: Cobaltite (n.) A mineral of a nearly silver-white color, composed of arsenic, sulphur, and cobalt..

Pyrites :: Pyrites (n.) A name given to a number of metallic minerals, sulphides of iron, copper, cobalt, nickel, and tin, of a white or yellowish color..

Electro-magnet :: Electro-magnet (n.) A mass, usually of soft iron, but sometimes of some other magnetic metal, as nickel or cobalt, rendered temporarily magnetic by being placed within a coil of wire through which a current of electricity is passing. The metal is generally in the form of a bar, either straight, or bent into the shape of a horseshoe..

Cabrerite :: Cabrerite (n.) An apple-green mineral, a hydrous arseniate of nickel, cobalt, and magnesia; -- so named from the Sierra Cabrera, Spain..

Magnetic :: Magnetic (n.) Any metal, as iron, nickel, cobalt, etc., which may receive, by any means, the properties of the loadstone, and which then, when suspended, fixes itself in the direction of a magnetic meridian..

Roseo- :: Roseo- () A prefix (also used adjectively) signifying rose-red; specifically used to designate certain rose-red compounds (called roseo-cobaltic compounds) of cobalt with ammonia. Cf. Luteo-.

Cobaltic :: Cobaltic (a.) Pertaining to, derived from, or containing, cobalt; -- said especially of those compounds in which cobalt has higher valence; as, cobaltic oxide..

Glaucodot :: Glaucodot (n.) A metallic mineral having a grayish tin-white color, and containing cobalt and iron, with sulphur and arsenic..

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

Zaffer :: Zaffer (n.) 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..

Cobalt :: Cobalt (n.) A tough, lustrous, reddish white metal of the iron group, not easily fusible, and somewhat magnetic. Atomic weight 59.1. Symbol Co..

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