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See Arsenate. [R.]

A salt having two equivalents of arsenic acid to one of the base. Graham.

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

alumina; -- called also cobalt ultramarine, and Thenard's blue. -- Cobalt crust, earthy arseniate of cobalt. -- Cobalt glance. (Min.) See Cobaltite. -- Cobalt green, a pigment consisting essentially of the oxides of cobalt and zinc; -- called also Rinman's green. -- Cobalt yellow (Chem.), a yellow crystalline powd…

a. -- Emerald green, a very durable pigment, of a vivid light green color, made from the arseniate of copper; green bice; Scheele's green; -- also used adjectively; as, emerald green crystals. -- Emerald Isle, a name given to Ireland on account of the brightness of its verdure. -- Emerald spodumene, or Lithia emeral…

A hydrous arseniate of copper, of an emerald-green color; -- so called from Erin, or Ireland, where it occurs.

A rose-red mineral, crystallized and earthy, a hydrous arseniate of cobalt, known also as cobalt bloom; -- called also erythrin or erythrine.

A mineral occurring in transparent emerald green crystals. It is hydrous arseniate of copper.

A mineral consisting of the arseniate of lime; -- so named in honor of W. Haidinger, of Vienna.

A variety of mimetite or arseniate of lead in hexagonal prisms of a fine orange yellow. [Written also campylite.]

A hydrated arseniate of copper, occurring in obtuse pyramidal crystals of a sky-blue or verdigris-green color.

A mineral occurring in pale yellow or brownish hexagonal crystals. It is an arseniate of lead.

An olive-green mineral, a hydrous arseniate of copper; olive ore.

A leek-green or brownish mineral occurring in orthorhombic crystals. It is a hydrous arseniate of iron. [Written also skorodite.]

A translucent mineral of a green color and pearly or vitreous luster. It is a hydrous arseniate of copper.

uartz, 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 t…