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Gray silver

Source : Webster's Revised Unabridged Dictionary (1913)

Silver \Sil"ver\, n. [OE. silver, selver, seolver, AS. seolfor,
   siolfur, siolufr, silofr, sylofr; akin to OS. silubar,
   OFries. selover, D. zilver, LG. sulver, OHG. silabar, silbar,
   G. silber, Icel. silfr, Sw. silfver, Dan. s["o]lv, Goth.
   silubr, Russ. serebro, Lith. sidabras; of unknown origin.]
   1. (Chem.) A soft white metallic element, sonorous, ductile,
      very malleable, and capable of a high degree of polish. It
      is found native, and also combined with sulphur, arsenic,
      antimony, chlorine, etc., in the minerals argentite,
      proustite, pyrargyrite, ceragyrite, etc. Silver is one of
      the ``noble'' metals, so-called, not being easily
      oxidized, and is used for coin, jewelry, plate, and a
      great variety of articles. Symbol Ag (Argentum). Atomic
      weight 107.7. Specific gravity 10.5.

   Note: Silver was known under the name of luna to the ancients
         and also to the alchemists. Some of its compounds, as
         the halogen salts, are remarkable for the effect of
         light upon them, and are used in photography.

   2. Coin made of silver; silver money.

   3. Anything having the luster or appearance of silver.

   4. The color of silver.

   Note: Silver is used in the formation of many compounds of
         obvious meaning; as, silver-armed, silver-bright,
         silver-buskined, silver-coated, silver-footed,
         silver-haired, silver-headed, silver-mantled,
         silver-plated, silver-slippered, silver-sounding,
         silver-studded, silver-tongued, silver-white. See
         {Silver}, a.

   {Black silver} (Min.), stephanite; -- called also {brittle
      silver ore}, or {brittle silver glance}.

   {Fulminating silver}. (Chem.)
      (a) A black crystalline substance, {Ag2O.(NH3)2}, obtained
          by dissolving silver oxide in aqua ammonia. When dry
          it explodes violently on the slightest percussion.
      (b) Silver fulminate, a white crystalline substance,
          {Ag2C2N2O2}, obtained by adding alcohol to a solution
          of silver nitrate. When dry it is violently explosive.

   {German silver}. (Chem.) See under {German}.

   {Gray silver}. (Min.) See {Freieslebenite}.

   {Horn silver}. (Min.) See {Cerargyrite}.

   {King's silver}. (O. Eng. Law) See {Postfine}.

   {Red silver}, or {Ruby silver}. (Min.) See {Proustite}, and

   {Silver beater}, one who beats silver into silver leaf or
      silver foil.

   {Silver glance}, or {Vitreous silver}. (Min.) See
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