Bronze powder

Mosaic \Mo*sa"ic\, a.
   Of or pertaining to the style of work called mosaic; formed
   by uniting pieces of different colors; variegated;
   tessellated; also, composed of various materials or
   ingredients.
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         A very beautiful mosaic pavement.        --Addison.
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   {Florentine mosaic}. See under {Florentine}.

   {Mosaic gold}.
   (a) See {Ormolu}.
   (b) Stannic sulphide, {SnS2}, obtained as a yellow scaly
       crystalline powder, and used as a pigment in bronzing and
       gilding wood and metal work. It was called by the
       alchemists {aurum musivum}, or {aurum mosaicum}. Called
       also {bronze powder}.

   {Mosaic work}. See {Mosaic}, n.
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Bronze \Bronze\, n. [F. bronze, fr. It. bronzo brown, fr. OHG.
   br?n, G. braun. See {Brown}, a.]
   1. An alloy of copper and tin, to which small proportions of
      other metals, especially zinc, are sometimes added. It is
      hard and sonorous, and is used for statues, bells, cannon,
      etc., the proportions of the ingredients being varied to
      suit the particular purposes. The varieties containing the
      higher proportions of tin are brittle, as in bell metal
      and speculum metal.
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   2. A statue, bust, etc., cast in bronze.
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            A print, a bronze, a flower, a root.  --Prior.
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   3. A yellowish or reddish brown, the color of bronze; also, a
      pigment or powder for imitating bronze.
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   4. Boldness; impudence; "brass."
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            Imbrowned with native bronze, lo! Henley stands.
                                                  --Pope.
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   {Aluminium bronze}. See under {Aluminium}.

   {Bronze age}, an age of the world which followed the stone
      age, and was characterized by the use of implements and
      ornaments of copper or bronze.

   {Bronze powder}, a metallic powder, used with size or in
      combination with painting, to give the appearance of
      bronze, gold, or other metal, to any surface.

   {Phosphor bronze} & {Silicious bronze} or {Silicium bronze}
      are made by adding phosphorus and silicon respectively to
      ordinary bronze, and are characterized by great tenacity.
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