Chert

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Hornstone \Horn"stone`\, n. (Min.)
     A siliceous stone, a variety of quartz, closely resembling
     flint, but more brittle; -- called also {chert}.
     [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:



  Chert \Chert\ (ch[~e]rt), n. [Ir. ceart stone, perh. akin to E.
     crag.] (Min.)
     An impure, massive, flintlike quartz or hornstone, of a dull
     color.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  chert
       n : variety of silica containing microcrystalline quartz