The Collaborative International Dictionary of English v.0.48:

Graphic \Graph"ic\ (gr[a^]f"[i^]k), Graphical \Graph"ic*al\
   (gr[a^]f"[i^]*kal), a. [L. graphicus, Gr. grafiko`s, fr.
   gra`fein to write; cf. F. graphique. See Graft.]
   1. Of or pertaining to the arts of painting and drawing; of
      or pertaining to graphics; as, graphic art work. [WordNet
      sense 2]
      [1913 Webster + WordNet 1.5]

   2. Of or pertaining to the art of writing.
      [1913 Webster]

   3. Written or engraved; formed of letters or lines.
      [1913 Webster]

            The finger of God hath left an inscription upon all
            his works, not graphical, or composed of letters.
                                                  --Sir T.
                                                  Browne.
      [1913 Webster]

   4. Having the faculty of clear, detailed, and impressive
      description; as, a graphic writer.
      [1913 Webster]

   5. Well delineated; clearly and vividly described;
      characterized by, clear, detailed, and impressive
      description; vivid; evoking lifelike images within the
      mind; as graphic details of the President's sexual
      misbehavior; a graphic description of the accident;
      graphic images of violence. [WordNet sense 5]

   Syn: lifelike, pictorial, vivid.
        [1913 Webster + WordNet 1.5]

   6. Hence: describing nudity or sexual activity in explicit
      detail; as, a novel with graphic sex scenes.
      [WordNet 1.5]

   7. relating to or presented by a graph[2]; as, a graphic
      presentation of the data. [WordNet sense 3]

   Syn: graphical.
        [WordNet 1.5]

   Graphic algebra, a branch of algebra in which, the
      properties of equations are treated by the use of curves
      and straight lines.

   Graphic arts, a name given to those fine arts which pertain
      to the representation on a fiat surface of natural
      objects; as distinguished from music, etc., and also from
      sculpture.

   Graphic formula. (Chem.) See under Formula.

   Graphic granite. See under Granite.

   Graphic method, the method of scientific analysis or
      investigation, in which the relations or laws involved in
      tabular numbers are represented to the eye by means of
      curves or other figures; as the daily changes of weather
      by means of curves, the abscissas of which represent the
      hours of the day, and the ordinates the corresponding
      degrees of temperature.

   Graphical statics (Math.), a branch of statics, in which
      the magnitude, direction, and position of forces are
      represented by straight lines

   Graphic tellurium. See Sylvanite.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sylvanite \Syl"van*ite\, n. [Fr. Transylvania, where first
   found.] (Min.)
   A telluride of gold and silver, (Au, Ag)Te2, of a steel
   gray, silver white, or brass yellow. It often occurs in
   implanted crystals resembling written characters, and hence
   is called graphic tellurium. H., 1.5-2. Sp.gr., 7.9-8.3.
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Tellurium \Tel*lu"ri*um\, n. [NL., from L. tellus, -uris, the
   earth.] (Chem.)
   A rare nonmetallic element, analogous to sulphur and
   selenium, occasionally found native as a substance of a
   silver-white metallic luster, but usually combined with
   metals, as with gold and silver in the mineral sylvanite,
   with mercury in Coloradoite, etc. Symbol Te. Atomic weight
   125.2.
   [1913 Webster]

   Graphic tellurium. (Min.) See Sylvanite.

   Tellurium glance (Min.), nagyagite; -- called also black
      tellurium.
      [1913 Webster]

WordNet (r) 3.0 (2006):

graphic tellurium
    n 1: a silver-white mineral consisting of silver gold telluride;
         a source of gold in Australia and America [syn:
         sylvanite, graphic tellurium]